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This is a researched thread / guide on how hair works and on haircare products and ingredients. We are all born with unique hair presets, which is why many people struggle to take care of their hair properly due to lack of education on the topic or misinformation. This thread aims to provide a fair chance to everyone to understand the basics of hair science.
I provide you with 6 sections.
A: Why improve your hair?
B: Hair + Scalp Biology
C: Cleansing
D: Conditioners
E: Hair Growth Actives
F: Nutritional + Hormonal Foundations
—————————————————————————————————————————
A: Why improve your hair?
Your hair frames your face and tops your head. It is your mane and your crown. This is a universal fact. Whether you are male or female, have long or short hair, dark or light – Whatever your hair looks like has a significant impact on how your face and even your body and your aura are perceived. After bone structure and skin, your hair is the highest ROI feature. Even without great bones or skin, your haircut and hair health have a huge impact and can save a lot for you. Your hair has a significant impact on how people perceive your vitality, symmetry, and even fertility.
B: Hair + Scalp Biology
In order to manipulate your hair health, you need to understand where it comes from and how it grows. Let’s start with scalp and hair follicles.
B.1: The anatomy of a hair follicle
1. The visible hair shaft (red): The visible hair as we know it per say. This is dead tissue, aka dead protein. However, the condition of the visible hair reflects your follicle health.
2. Root, bulb, dermal papilla, sebaceous gland (green): The root of the hair sits under the skin and extends down to the bulb, the growth center of the hair. At the base of it sits the deral papilla. This part is rich in blood vessels and supplies oxygen, nutrients, and growth signals The sebaceous gland produces the sebum that lubricates your scalp and hair. It’s attached to the follicle and can cause clogged pores or scalp acne when overactive.
3. Arrector pili muscle -> hormonal ties (blue): While this muscle is not directly relevant to aesthetics, it is connected to hormonal signaling.
4. Infundibulum and isthmus: Don’t overlook this anatomy when dealing with topical treatments as well as DHT-related therapies and microneedling. These are the top and middle section of the hair follicle and are critical for hair cycling and follicle recovery. (See section E)
B.2: Hair Growth Phases:
- Anagen: 2-6 years. The Growth phase. During this phase, your hair grows on average 1 cm per month. At any given time, around 85-90% of your hair is in this phase. .
- Catagen: Around 10 days. Regression. This is where your hair stops growing. The follicle shrinks and detached from blood supply. Around 1% of hair is in this phase at all times.
- Telogen: 2-3 months. Resting phase. This is where shedding starts. The hair sits in the follicle but has stopped growing. It will be pushed out by new hair eventually. 10-15% of hair is usually in Telogen phase.
- Exogen: Shedding from the follicle. This phase overlaps with Telogen. You usually lose 50-100 hairs per day in this phase.
-> Key takeaway: The anagen phase is critical for length retention and to make hair grow in stronger, thicker and longer. While many treatments aim to prolong this specific phase, its length is genetically predetermined. However, manipulation techniques are becoming more and more mainstream. See section E for more.
B.3: Hormonal Control
In order to understand your aesthetics, you need to know your body. These hormones are crucial for understanding hair growth.
1. DHT (Dihydrotestosterone): DHT binds androgen receptors in the dermal papilla and causes follicular miniaturisation. This means your hair shrinks. Research how to keep your DHT levels controlled.
2. 5a-Reductase Emzymes: These Emzymes convert testosterone to DHT. These enzymes can be blocked to inhibit the function of the enzymes. See section E for examples.
3. Estrogens: Estrogen acts protective on hair and elongates the anagen phase. This is for example why many women on birth control report healthier hair growth, or, much more prominently, many report hair loss when stopping birth control
-> Key takeaways: The sensitivity of your hair follicle to DHT is genetically predetermined.
C: Cleansing
C.1: Surfactants and Detergents – Key shampoo ingredients
- SLS (Sodium Lauryl Sulfate): This is an ingredient you should look for if you have an oily scalp, or sweat frequently. These Sulfats are what makes your shampoo foam.
Benefits: Strong cleansers, high foaming
Risks: Strip natural oils, disrupt scalp barrier, dryness, irritation
- SCI (Cocamidopropyl Betaine): An alternative to strong sulfates. You will find these often as buffers for stronger ingredients.
Benefits: Safer for the scalp, balanced
Risks: Can leave buildup due to moderate cleansing properties
What you should aim for ideally for everyday use: Low-foam, mild pH-balanced shampoos. Try to avoid sulfates, even if it’s hard in the beginning.
C.2: The Scalp microbiome
Not much to say for this section except for the fact that YOU NEED TO WASH YOUR HAIR. Your scalp is home to bacteria und fungi and if these overgrow, you WILL experience dandruff or bacterial infections.
C.3: Shampoo Frequency:
- Oily scalp: 1x a day or every other day
- Dry scalp: 2-3x a week (with co-washes in between)
! What is co-washing? When co-washing, you only wash your hair with conditioner. This is a practice most optimal for people with thick, wavy or curly hair. If you have thin hair, I recommend staying away from this method or really doing a deep dive research into which conditioners are appropriate for you.
! Do not fall for the hair training propaganda! As I mentioned above, I believe hair training is a horrible trend. I do not blame or criticise people for developing their individual hair wash rituals and even sometimes being unable to uphold hygienic standards due to for example mental health problems. However, greasy hair is not nice to look at, it usually starts smelling and the product and grease buildup weighs hair down and damages it. Going without a hair wash for a prolonged time also promotes fungi and bacteria on your scalp. Please, do everyone a favour and take a shower or at least take one for the team and stop using shampoo altogether so I can write a thread on it.
C.4: Choosing the right shampoo
In order to choose the right shampoo for your hair, you HAVE to know certain things about your hair. The following categories heavily influence the hair care which you should choose and will not be discussed in this thread but perhaps an individual one:
- Hair porosity
- Hair density
- Hair structure
- The climate which you live in
However, here are beneficial ingredients that can minimally substitute oral or topical medical supplements in most cases:
- Zync Pyrithione: Reduces flakes, itching, irritation
- Ketoconazole (2%): antifungal, anti-DHT activity ingredient
- Salicylic Acid: Scalpand keratin plug exfoliation
- Caffeine: Stimulates follicles
Product recommendations: (Heavily backed by online feedback)
- DHS Zinc Shampoo
- Konazol Shampoo
- KUNDAL Caffeine & Salicyclic Acid Shampoo
- Jupiter Balancing Shampoo (Zinc Pyritione)
- Vanicream Medicated Dandruff Shampoo (Zinc Pyrithione)
- Nizoral A-D (Ketoconazole)
- Intelligent Shop super-volumizing shampoo (Ketoconazole)
- Neutrogena T/Sal (salicylic acid)
! Disclaimer: Studies on these ingredients are ongoing.
Looking for shampoos with the discussed ingredients will generally result in using more high-end products. When choosing drugstore options, you should value the hair categories mentioned above over expensive ingredients. Thus, the corresponding product recommendations will result in another thread as well.
D: Conditioners
D.1: How Conditioners work
- Humectants attract water to the hair (Glycerin, Hyaluronic acid)
- Emollients smooth the cuticle and reduce friction (Shea butter, silicones)
- Occlusives seal water in (Castor oil, Petrolatum)
-> Key takeaways: Not all of these ingredients actually moisturise your hair. It is a widespread misconception that conditioner is supposed to do so. Moisture is the main task of hair masks. Conditioners close the hair cuticle after it has been roughened up by shampooing. This is why people perceive conditioners high in silicones to work the best.
D.2: Briefly explaining hair porosity
You cannot properly moisturise your hair if you do not know your hair porosity.
- High porosity: Moisture gets absorbed easily but hair dries out quickly
- Low porosity: Water-resistant. The hair is hard to moisturise but the moisture lasts longer.
-> Porosity affects product absorption! Take the hair porosity test to find out your hair porosity. If you have low porosity hair, BE EXTRA CAUTIOUS. Most western haircare is highly aimed at high porosity hair and can severely damage your low porosity hair.
(Fun fact? Bleaching and heat damage heighten your hair’s porosity. Do with that information what you want. (Actually please don’t purposefully inflict damage on your hair ok?))
D.3: Conflicted feelings on silicone
Products like hair glosses have become really popular over the last few years for „repairing“ hair and making it shiny. Fact is: Silicones like Dimethicone and Cyclopentasiloxane coat the shaft of the hair and reduce breakage. HOWEVER silicones are non-water soluble and WILL build up over time unless removed with a clarifying shampoo. They aren’t really considered harmful however should be avoided if you have thin, wavy, curly or low porosity hair because the silicones weigh down your hair and can cause hair loss (Hence why people both swear by and curse Pantene, silicones final boss).
Product recommendations (Same precautions as with shampoos, these are more high end as well)
- Olaplex No. 5 Bond Maintenance Conditioner
- Living Proof Restore Conditioner
- Kérastase Nutrtive Lait Vital Conditioner
- Redken All Soft Conditioner
- Bumble and Bumble Hairdresser’s Invisible Oil Conditioner
E: If your haircare is not expensive enough yet, try Hair Growth Actives
So I know these have been discussed to death in the community ut they should be worth mentioning either way. Proceed with caution here because these will likely have side effects. I won’t go into any detail here just say what they do and name side effects.
E.1: Minoxidil
Aims to prolong anagen phase. Side effects: Shedding during initial anagen switch, hypertrichosis, dermatitis.
E.2: Finasteride / Dutasteride
Inhibit 5a-reductase -> less DHT-activity. Side effects: Decreased libido, potential erectile dysfunction or ejaculation disorders
E.3: Microneedling
Usually in combination with Minoxidil, pretty chill, induces growth factors.
! Caution: Don’t try these if under 18, or actually under 21. If you have to, consult a doctor. These are fairly expensive and invasive options. I recommend staying away and I also dislike how mainstream these methods are in the bp community.
Personal additions (less expensive / invasive): caffeine topicals, rosemary oil, peppermint oil
F: Nutritional + Hormonal Foundations
YAY it’s my time to nerd out. (For REALLY optimal results, get your nutrition blood test to identify deficiencies or imbalances)
F.1: List of nutrient deficiencies that may be stunting your hair growth + how to supplement them
- Protein (Eggs, chicken, turkey, lean beef, Greek yogurt, lentils, beans, chickpeas, tofu tempeh, whey or protein powder)
- Biotin (egg yolks, liver, almonds, walnuts, sunflower / chia / flax seeds, sweet potatoes, avocados, salmon)
- Iron (beef, lamb, chicken thighs, turkey, liver, lentils, spinach, kale, pumpkin seeds, quinoa)
- Zinc + Magnesium (Oysters, beef, lamb, pumpkin seeds, chickpeas, cashews, crab, lobster)
- Collagen + Amino Acids (Bone broth, Chicken / fish / pig skin, gelatine)
F.2: Lifestyle factors that are stunting your hair growth and that promote balding:
- Chronic stress
- Too little sleep
- High cortisol
- Anabolic hormones deficiency
This last section is pretty self explanatory I believe. Sleep enough, exercise, regulate your hormones, reset your nervous system, lower your cortisol, reduce screentime, manage your stress. Drink enough water etc etc
Thank you for reading my general yap on hair science. I will make more (financially) accessible threads in the future if I feel like it. I hope I was able to help someone out there. I am learning with you, so feel free to ask questions and I will do my best to research and provide answers. Mind you English is not my first language. Ok bai
Luzi xx
Sources but it’s just all the sources I ever touched:
I provide you with 6 sections.
A: Why improve your hair?
B: Hair + Scalp Biology
C: Cleansing
D: Conditioners
E: Hair Growth Actives
F: Nutritional + Hormonal Foundations
—————————————————————————————————————————
A: Why improve your hair?
Your hair frames your face and tops your head. It is your mane and your crown. This is a universal fact. Whether you are male or female, have long or short hair, dark or light – Whatever your hair looks like has a significant impact on how your face and even your body and your aura are perceived. After bone structure and skin, your hair is the highest ROI feature. Even without great bones or skin, your haircut and hair health have a huge impact and can save a lot for you. Your hair has a significant impact on how people perceive your vitality, symmetry, and even fertility.
B: Hair + Scalp Biology
In order to manipulate your hair health, you need to understand where it comes from and how it grows. Let’s start with scalp and hair follicles.
B.1: The anatomy of a hair follicle
1. The visible hair shaft (red): The visible hair as we know it per say. This is dead tissue, aka dead protein. However, the condition of the visible hair reflects your follicle health.
2. Root, bulb, dermal papilla, sebaceous gland (green): The root of the hair sits under the skin and extends down to the bulb, the growth center of the hair. At the base of it sits the deral papilla. This part is rich in blood vessels and supplies oxygen, nutrients, and growth signals The sebaceous gland produces the sebum that lubricates your scalp and hair. It’s attached to the follicle and can cause clogged pores or scalp acne when overactive.
3. Arrector pili muscle -> hormonal ties (blue): While this muscle is not directly relevant to aesthetics, it is connected to hormonal signaling.
4. Infundibulum and isthmus: Don’t overlook this anatomy when dealing with topical treatments as well as DHT-related therapies and microneedling. These are the top and middle section of the hair follicle and are critical for hair cycling and follicle recovery. (See section E)
B.2: Hair Growth Phases:
- Anagen: 2-6 years. The Growth phase. During this phase, your hair grows on average 1 cm per month. At any given time, around 85-90% of your hair is in this phase. .
- Catagen: Around 10 days. Regression. This is where your hair stops growing. The follicle shrinks and detached from blood supply. Around 1% of hair is in this phase at all times.
- Telogen: 2-3 months. Resting phase. This is where shedding starts. The hair sits in the follicle but has stopped growing. It will be pushed out by new hair eventually. 10-15% of hair is usually in Telogen phase.
- Exogen: Shedding from the follicle. This phase overlaps with Telogen. You usually lose 50-100 hairs per day in this phase.
-> Key takeaway: The anagen phase is critical for length retention and to make hair grow in stronger, thicker and longer. While many treatments aim to prolong this specific phase, its length is genetically predetermined. However, manipulation techniques are becoming more and more mainstream. See section E for more.
B.3: Hormonal Control
In order to understand your aesthetics, you need to know your body. These hormones are crucial for understanding hair growth.
1. DHT (Dihydrotestosterone): DHT binds androgen receptors in the dermal papilla and causes follicular miniaturisation. This means your hair shrinks. Research how to keep your DHT levels controlled.
2. 5a-Reductase Emzymes: These Emzymes convert testosterone to DHT. These enzymes can be blocked to inhibit the function of the enzymes. See section E for examples.
3. Estrogens: Estrogen acts protective on hair and elongates the anagen phase. This is for example why many women on birth control report healthier hair growth, or, much more prominently, many report hair loss when stopping birth control
-> Key takeaways: The sensitivity of your hair follicle to DHT is genetically predetermined.
C: Cleansing
C.1: Surfactants and Detergents – Key shampoo ingredients
- SLS (Sodium Lauryl Sulfate): This is an ingredient you should look for if you have an oily scalp, or sweat frequently. These Sulfats are what makes your shampoo foam.
Benefits: Strong cleansers, high foaming
Risks: Strip natural oils, disrupt scalp barrier, dryness, irritation
- SCI (Cocamidopropyl Betaine): An alternative to strong sulfates. You will find these often as buffers for stronger ingredients.
Benefits: Safer for the scalp, balanced
Risks: Can leave buildup due to moderate cleansing properties
What you should aim for ideally for everyday use: Low-foam, mild pH-balanced shampoos. Try to avoid sulfates, even if it’s hard in the beginning.
C.2: The Scalp microbiome
Not much to say for this section except for the fact that YOU NEED TO WASH YOUR HAIR. Your scalp is home to bacteria und fungi and if these overgrow, you WILL experience dandruff or bacterial infections.
C.3: Shampoo Frequency:
- Oily scalp: 1x a day or every other day
- Dry scalp: 2-3x a week (with co-washes in between)
! What is co-washing? When co-washing, you only wash your hair with conditioner. This is a practice most optimal for people with thick, wavy or curly hair. If you have thin hair, I recommend staying away from this method or really doing a deep dive research into which conditioners are appropriate for you.
! Do not fall for the hair training propaganda! As I mentioned above, I believe hair training is a horrible trend. I do not blame or criticise people for developing their individual hair wash rituals and even sometimes being unable to uphold hygienic standards due to for example mental health problems. However, greasy hair is not nice to look at, it usually starts smelling and the product and grease buildup weighs hair down and damages it. Going without a hair wash for a prolonged time also promotes fungi and bacteria on your scalp. Please, do everyone a favour and take a shower or at least take one for the team and stop using shampoo altogether so I can write a thread on it.
C.4: Choosing the right shampoo
In order to choose the right shampoo for your hair, you HAVE to know certain things about your hair. The following categories heavily influence the hair care which you should choose and will not be discussed in this thread but perhaps an individual one:
- Hair porosity
- Hair density
- Hair structure
- The climate which you live in
However, here are beneficial ingredients that can minimally substitute oral or topical medical supplements in most cases:
- Zync Pyrithione: Reduces flakes, itching, irritation
- Ketoconazole (2%): antifungal, anti-DHT activity ingredient
- Salicylic Acid: Scalpand keratin plug exfoliation
- Caffeine: Stimulates follicles
Product recommendations: (Heavily backed by online feedback)
- DHS Zinc Shampoo
- Konazol Shampoo
- KUNDAL Caffeine & Salicyclic Acid Shampoo
- Jupiter Balancing Shampoo (Zinc Pyritione)
- Vanicream Medicated Dandruff Shampoo (Zinc Pyrithione)
- Nizoral A-D (Ketoconazole)
- Intelligent Shop super-volumizing shampoo (Ketoconazole)
- Neutrogena T/Sal (salicylic acid)
! Disclaimer: Studies on these ingredients are ongoing.
Looking for shampoos with the discussed ingredients will generally result in using more high-end products. When choosing drugstore options, you should value the hair categories mentioned above over expensive ingredients. Thus, the corresponding product recommendations will result in another thread as well.
D: Conditioners
D.1: How Conditioners work
- Humectants attract water to the hair (Glycerin, Hyaluronic acid)
- Emollients smooth the cuticle and reduce friction (Shea butter, silicones)
- Occlusives seal water in (Castor oil, Petrolatum)
-> Key takeaways: Not all of these ingredients actually moisturise your hair. It is a widespread misconception that conditioner is supposed to do so. Moisture is the main task of hair masks. Conditioners close the hair cuticle after it has been roughened up by shampooing. This is why people perceive conditioners high in silicones to work the best.
D.2: Briefly explaining hair porosity
You cannot properly moisturise your hair if you do not know your hair porosity.
- High porosity: Moisture gets absorbed easily but hair dries out quickly
- Low porosity: Water-resistant. The hair is hard to moisturise but the moisture lasts longer.
-> Porosity affects product absorption! Take the hair porosity test to find out your hair porosity. If you have low porosity hair, BE EXTRA CAUTIOUS. Most western haircare is highly aimed at high porosity hair and can severely damage your low porosity hair.
(Fun fact? Bleaching and heat damage heighten your hair’s porosity. Do with that information what you want. (Actually please don’t purposefully inflict damage on your hair ok?))
D.3: Conflicted feelings on silicone
Products like hair glosses have become really popular over the last few years for „repairing“ hair and making it shiny. Fact is: Silicones like Dimethicone and Cyclopentasiloxane coat the shaft of the hair and reduce breakage. HOWEVER silicones are non-water soluble and WILL build up over time unless removed with a clarifying shampoo. They aren’t really considered harmful however should be avoided if you have thin, wavy, curly or low porosity hair because the silicones weigh down your hair and can cause hair loss (Hence why people both swear by and curse Pantene, silicones final boss).
Product recommendations (Same precautions as with shampoos, these are more high end as well)
- Olaplex No. 5 Bond Maintenance Conditioner
- Living Proof Restore Conditioner
- Kérastase Nutrtive Lait Vital Conditioner
- Redken All Soft Conditioner
- Bumble and Bumble Hairdresser’s Invisible Oil Conditioner
E: If your haircare is not expensive enough yet, try Hair Growth Actives
So I know these have been discussed to death in the community ut they should be worth mentioning either way. Proceed with caution here because these will likely have side effects. I won’t go into any detail here just say what they do and name side effects.
E.1: Minoxidil
Aims to prolong anagen phase. Side effects: Shedding during initial anagen switch, hypertrichosis, dermatitis.
E.2: Finasteride / Dutasteride
Inhibit 5a-reductase -> less DHT-activity. Side effects: Decreased libido, potential erectile dysfunction or ejaculation disorders
E.3: Microneedling
Usually in combination with Minoxidil, pretty chill, induces growth factors.
! Caution: Don’t try these if under 18, or actually under 21. If you have to, consult a doctor. These are fairly expensive and invasive options. I recommend staying away and I also dislike how mainstream these methods are in the bp community.
Personal additions (less expensive / invasive): caffeine topicals, rosemary oil, peppermint oil
F: Nutritional + Hormonal Foundations
YAY it’s my time to nerd out. (For REALLY optimal results, get your nutrition blood test to identify deficiencies or imbalances)
F.1: List of nutrient deficiencies that may be stunting your hair growth + how to supplement them
- Protein (Eggs, chicken, turkey, lean beef, Greek yogurt, lentils, beans, chickpeas, tofu tempeh, whey or protein powder)
- Biotin (egg yolks, liver, almonds, walnuts, sunflower / chia / flax seeds, sweet potatoes, avocados, salmon)
- Iron (beef, lamb, chicken thighs, turkey, liver, lentils, spinach, kale, pumpkin seeds, quinoa)
- Zinc + Magnesium (Oysters, beef, lamb, pumpkin seeds, chickpeas, cashews, crab, lobster)
- Collagen + Amino Acids (Bone broth, Chicken / fish / pig skin, gelatine)
F.2: Lifestyle factors that are stunting your hair growth and that promote balding:
- Chronic stress
- Too little sleep
- High cortisol
- Anabolic hormones deficiency
This last section is pretty self explanatory I believe. Sleep enough, exercise, regulate your hormones, reset your nervous system, lower your cortisol, reduce screentime, manage your stress. Drink enough water etc etc
Thank you for reading my general yap on hair science. I will make more (financially) accessible threads in the future if I feel like it. I hope I was able to help someone out there. I am learning with you, so feel free to ask questions and I will do my best to research and provide answers. Mind you English is not my first language. Ok bai
Luzi xx
Sources but it’s just all the sources I ever touched:
- Randall VA. (2008). Androgens and hair growth. Clinical Endocrinology. https://doi.org/10.1111/j.1365-2265.2008.03154.x
- Paus R, Cotsarelis G. (1999). The biology of hair follicles. New England Journal of Medicine.
- Messenger AG, Sinclair RD. (2006). Follicular miniaturization in androgenetic alopecia: Histological and molecular aspects. British Journal of Dermatology. https://doi.org/10.1111/j.1365-2133.2006.07175.x
- Almohanna H, Ahmed AA, Tsatalis JP, Tosti A. (2019). The role of vitamins and minerals in hair loss: A review. Dermatology and Therapy. https://doi.org/10.1007/s13555-018-0278-6
- Dawber R. (1996). Hair growth disorders. Clinical and Experimental Dermatology. https://doi.org/10.1111/j.1365-2230.1996.tb02829.x
- Rosenberg L. (2013). Surfactants and the skin: A comprehensive review. Clinics in Dermatology.
- D’Souza P, Rathi SK. (2015). Shampoo and condition: What a dermatologist should know? Indian Journal of Dermatology. https://doi.org/10.4103/0019-5154.169129
- Blume-Peytavi U, Vogt A. (2011). Human hair follicle: Reservoir function and selective targeting. British Journal of Dermatology. https://doi.org/10.1111/j.1365-2133.2011.10699.x
- Mirmirani P. (2009). Hormonal changes in menopause: Do they contribute to a “midlife hair crisis”? British Journal of Dermatology. https://doi.org/10.1111/j.1365-2133.2009.09448.x
- Cash TF. (2001). The psychological effects of androgenetic alopecia. Journal of the American Academy of Dermatology. https://doi.org/10.1067/mjd.2001.113451
- Rushton DH. (2002). Nutritional factors and hair loss. Clinical and Experimental Dermatology.
- Bregy A, Trueb RM. (2008). Hair loss in elderly women: Pathogenesis and therapeutic options. Dermatology.
- Finner AM. (2013). Nutrition and hair: Deficiencies and supplements. Dermatologic Clinics.
- Gorcea C, et al. (2020). Efficacy of caffeine-based shampoo and topical treatments for hair loss: A systematic review. Skin Appendage Disorders. https://doi.org/10.1159/000506860
- Draelos ZD. (2010). Shampoo and conditioner basics. Dermatologic Clinics. https://doi.org/10.1016/j.det.2010.03.005
- Todberg T, Zachariae C, Skov L. (2019). Ketoconazole in the treatment of seborrheic dermatitis: A systematic review. Dermatologic Therapy. https://doi.org/10.1111/dth.13097
- Tosti A, Duque-Estrada B. (2009). Dermoscopy in hair disorders. Journal of the Egyptian Women's Dermatologic Society. https://doi.org/10.4103/1687-1537.56225
- Grimalt R. (2007). A practical guide to scalp disorders. Journal of Investigative Dermatology Symposium Proceedings.
- Goluch-Koniuszy ZS. (2016). Nutrition of women with hair loss problem during the period of menopause. Przeglad Menopauzalny. https://doi.org/10.5114/pm.2016.58778
- Smith DR, Jones SM. (2015). Role of selenium and zinc in hair follicle function. International Journal of Trichology.
