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research The Relationship between Types of Hair Coloring with Hair Damages and Scalp Problems in Medical Students of University Sumatera Utara, Indonesia

January 2016 in “International archives of medicine”

In this study, a significant relationship was observed between hair coloring and both hair damage and scalp problems among students at the University of Sumatera Utara.

research The role of oxidative damage in poor scalp health: ramifications to causality and associated hair growth

24 citations , November 2015 in “International Journal of Cosmetic Science”

This study demonstrated that oxidative stress contributes to dandruff, and using a potentiated ZPT shampoo improves scalp and hair condition by reducing oxidative stress.

Evaluation of Extracts Containing Red Clover Using Dermal Papilla Cells in the Development of a Scalp Treatment System Targeting Hair Loss and Hair Damage

research 496 Evaluation of extracts containing red clover using dermal papilla cells in the development of a scalp treatment system targeting hair loss and hair damage

June 2020 in “Journal of Investigative Dermatology”

This study reported that a treatment serum containing ingredient blends with panthenol, licorice extract, and red clover extract significantly improved hair volume, scalp coverage, and reduced hair breakage over 6 months in individuals with thinning or damaged hair.

Transepidermal UV Radiation of Scalp Skin Ex Vivo Induces Hair Follicle Damage That Is Alleviated by Topical Treatment with Caffeine

research Transepidermal UV radiation of scalp skin ex vivo induces hair follicle damage that is alleviated by the topical treatment with caffeine

31 citations , February 2019 in “International Journal of Cosmetic Science”

This study found that ultraviolet radiation negatively affects hair follicle functions in human scalp skin, and caffeine application may provide some protective effects against this damage.

research Application of single hair fibre tensile measurements to create an industry‐standard heat damage scale for hair

July 2025 in “International Journal of Cosmetic Science”

In this study, researchers developed a new 6-point scale for evaluating heat damage to hair from straighteners, finding a strong correlation between technical damage measurements and human perception of hair damage.

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Learn

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learn Scalp Micropigmentation

Will scalp micropigmentation damage my existing hair or follicles? Scalp micropigmentation does not damage existing hair or follicles.
How can I protect my scalp from sun exposure after a scalp micropigmentation treatment? Wear a hat or high-SPF sunscreen to protect your scalp from sun exposure.
Can scalp micropigmentation be removed? Scalp micropigmentation can be removed using laser treatments, but results may vary.

learn Ketoconazole

Ketoconazole: Is it safe to use every day or can it damage my hair? Ketoconazole shampoo is labelled for use about two to three times a week, and no published trial has tested daily use for hair loss; dermatology guidance and the product label warn that more frequent use tends to dry and irritate the scalp.

learn procapil

Want to stop hormonal hair loss without touching your hormone levels? Procapil could block the enzyme doing the damage. Procapil's supplier describes it as inhibiting 5-alpha reductase at the scalp without changing hormone levels, but the published support is cell and animal work plus one small human study of a caffeine-plus-Procapil formula. It is a cosmetic ingredient, not an approved hair-loss treatment, and no trial has compared it with finasteride or minoxidil.

learn Estradiol

an estrogen promoting hair regrowth more commonly used in women

learn Sulforaphane

compound from cruciferous vegetables has some mild effects on DHT

learn Melatonin

hormone commonly taken for sleep aid has some topical benefits for hair

learn Rosemary

herb and oil with stimulant, circulatory, anti-inflammatory and antioxidant properties

learn Neem Oil

natural substance from Neem tree with medicinal and pesticidal properties

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Community Join

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community Does microneedling damage scalp?

in Research/Science 12 upvotes 2 years ago

Microneedling does not prevent future hair transplants, but some surgeons report the skin becomes "harder" in treated areas. There is no clear evidence to confirm this effect.

community Has anyone experienced burning scalp after chemical damage (perm)?

in Chat 6 upvotes 11 months ago

A user experienced burning, itching, and soreness on their scalp after a perm in 2021, despite using oral finasteride, oral minoxidil, and ketoconazole shampoo. They are seeking advice on whether to pursue further medical tests or consult a neurologist for nerve pain.

community Is the “crunching” sound during microneedling my scalp actually the needles cutting through hair?

161 upvotes 5 months ago

The "crunching" sound during microneedling is likely the needles penetrating the scalp's outer layers, not cutting hair. Users suggest using a derma stamp instead of a roller to avoid potential hair damage.

community microneedle, any long term users damage?

in Microneedling 35 upvotes 2 years ago

Microneedling is effective for hair growth, especially when combined with finasteride and minoxidil, but concerns exist about potential long-term skin damage. Users report increased collagen and elastin deposition, but the long-term effects on the scalp remain uncertain.

community Microneedling depth. Does one length fit all areas of the scalp? Maybe not.

55 upvotes 4 years ago

Microneedling depth should be customized based on hair type and scalp area, with many users finding 0.5-0.6mm effective for miniaturized hairs to avoid damage. Users report varying pain levels and results, with some preferring shorter needle lengths and others using longer ones like 1.75mm for scalp health and density improvement.

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Clinics

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All 500 clinic results →

Experts

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24
Trichologist
Kirsten J. Scalp
Greenville, SC, United States

Kirsten J. Scalp