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Glossary Topical Melatonin

hormone applied to skin to promote hair growth

Topical melatonin refers to the application of melatonin directly onto the skin, typically in the form of creams, gels, or serums. Melatonin, a hormone primarily known for regulating sleep, has antioxidant properties and can help protect skin cells from damage. In the context of hair and alopecia, topical melatonin is being explored for its potential to promote hair growth and reduce hair loss by protecting hair follicles from oxidative stress.

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learn Melatonin

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

Is melatonin better as a supplement or applied to the scalp? No study has compared oral and topical melatonin head to head. Topical melatonin has one small placebo-controlled pilot trial in 40 women plus a set of mostly uncontrolled studies of a cosmetic solution; oral melatonin has no published hair-loss trial at all.

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learn Finasteride

Topical or oral? Choosing between pills and lotions according to your case. Topical finasteride offers localized treatment with fewer systemic side effects than oral finasteride.

learn Cetirizine

Is topical cetirizine effective for androgenetic alopecia in women? Topical cetirizine is not an approved product and its use for female-pattern hair loss is off-label. The evidence is one small unblinded pilot study in mixed-sex patients and one randomized trial in 66 women where cetirizine was added to minoxidil; it is unproven on its own.

learn Estradiol

How does topical Estradiol compare to oral Estradiol in treating alopecia? Topical estradiol delivers hormone to the scalp with less systemic exposure, but evidence is thin and it is still a hormone. It needs a doctor's supervision, and people with estrogen-sensitive cancers must not use it without medical approval.

learn Glycerin

Does topical glycerin have any effect on hair thickness or follicle function? Topical glycerin primarily hydrates hair but does not increase thickness or follicle function.

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Research

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research Topical Melatonin for Treatment of Androgenetic Alopecia

39 citations , January 2012 in “International Journal of Trichology”

This study found that topical melatonin solution was associated with positive effects on hair density and reduction in hair loss for androgenetic alopecia, with good tolerability reported in several clinical trials.

research The impact of body site, topical melatonin and brushing on hair regrowth after clipping normal Siberian Husky dogs

17 citations , January 2006 in “Veterinary Dermatology”

This study found that topical melatonin and vigorous brushing did not affect hair regrowth in clipped Siberian Huskies, although lumbosacral hairs grew significantly shorter than lateral thigh hairs.

research Topical Melatonin in Aesthetic Dermatology: From Cutaneous Melatoninergic Biology to Photoprotection, and Skin Rejuvenation

July 2026 in “Clinics in Dermatology”

This review discusses the potential benefits of topical melatonin in aesthetic dermatology, including its antioxidant and protective properties for skin aging and photoaging, while also noting varying strengths of evidence across different skin conditions.

research Topical Melatonin in the Treatment of Hair Loss (Alopecia): A Comprehensive Scientific Review

July 2026 in “DOAJ (DOAJ: Directory of Open Access Journals)”

This study highlights that topical melatonin formulations have the potential to increase hair density, prolong the hair growth phase, and reduce shedding in adults with alopecia, while generally being safe, though further large-scale randomized trials are needed to confirm its clinical efficacy.

research 686 Topical melatonin unfolds differential anti-aging effects in human skin by inhibiting mTORC1 activity via TSC2 stimulation

July 2024 in “Journal of Investigative Dermatology”

This study found that topically applied melatonin exerts significant anti-aging effects on human scalp skin ex vivo, including increased SIRT1 expression and reduced mTORC1 pathway activity.

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community Topical melatonin spray to reduce hair shedding recommends?

1 upvotes 10 months ago

The user has been using topical melatonin spray with finasteride and dutasteride to reduce hair shedding but dislikes the lavender scent of their current spray. They are seeking recommendations for a scentless or better-smelling melatonin spray.

community This is my first time seeing Topical melatonin with minoxidil. How exactly does topical melatonin helps hair? Does it any effects like finasteride?

in Product 2 upvotes 1 year ago

Topical melatonin combined with minoxidil is being discussed for its potential benefits in hair growth. The conversation questions if it has effects similar to finasteride.

community Topical Melatonin, Hair Loss/Growth, and Seb Derm (Seborrheic Dermatitis)

13 upvotes 3 years ago

Topical melatonin was found to significantly increase hair density and decrease scalp conditions like seborrheic dermatitis. The user is considering using it alongside finasteride and oral minoxidil for treating hair loss and scalp health.

community Topical Melatonin: People in the UK how do you source it and has it worked for Retrograde Alopecia?

4 upvotes 4 years ago

The conversation is about sourcing and using topical melatonin for retrograde alopecia. Users discuss purchasing options and potential benefits for hair growth.

community Topical melatonin shows some promise.

4 upvotes 10 years ago

Topical melatonin shows promise for increasing hair density with minimal side effects. The user is transitioning from oral finasteride to a compounded minoxidil and finasteride solution and considering melatonin and bimatoprost as additional treatments.

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