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research An Evaluation of Generic and Disease‐Specific Patient‐Reported Outcome Measures to Assess the Impact of Percentage of Scalp Hair Loss on Health‐Related Quality of Life in a European Population

1 citations , January 2025 in “JEADV Clinical Practice”

This study reported that the AAPPO tool effectively distinguishes between patients with alopecia areata based on scalp hair loss severity, whereas the EQ‐5D‐5L may underestimate the specific disease burden, particularly in psychological and social aspects.

SALT II: A New Take on the Severity of Alopecia Tool for Determining Percentage Scalp Hair Loss

research SALT II: A new take on the Severity of Alopecia Tool (SALT) for determining percentage scalp hair loss

44 citations , November 2016 in “Journal of The American Academy of Dermatology”

This article updates a diagnostic tool (SALT II) for assessing hair loss by adding more precise measurements of scalp surface area, particularly useful for various types of alopecia.

research A Novel, Drinkable Food Supplement Formulation Reduces Hair Shedding and Increases the Percentage of Anagen Scalp Hair Follicles in Females with Hair Loss

November 2025 in “Journal of Clinical Medicine”

This study found that a novel drinkable supplement significantly increased hair density and reduced hair shedding over six months in women with telogen effluvium, although the authors emphasize the need for larger, placebo-controlled trials to confirm these promising results.

research Automating Hair Loss Labels for Universally Scoring Alopecia From Images

1 citations , December 2022 in “JAMA Dermatology”

This study found that the HairComb algorithm achieved high accuracy in quantifying percentage hair loss across various types of alopecia, suggesting its potential for standardized automated assessments.

research No improvement in male-pattern hair loss using laser hair-comb therapy: a 6-month, half-head, assessor-blinded investigation in two men

13 citations , October 2011 in “Clinical and Experimental Dermatology”

This study found no improvement in male-pattern hair loss after six months of using laser hair-comb therapy in two men.

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Community Join

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community What percentage of men these days do you guys think are on some type of hair loss treatment?

in Research/Science 51 upvotes 2 years ago

Many celebrities and athletes likely use hair loss treatments like Minoxidil and Finasteride. Despite their effectiveness, only a small percentage of the general population uses these treatments.

community Thoughts on these ingredients for hair loss?

2 upvotes 6 months ago

A user is considering a topical hair loss treatment containing Minoxidil, Finasteride, and other ingredients. Some users suggest the doses are high and recommend starting with lower percentages.

community Amy Hair Medics UK customers here?

1 upvotes 1 year ago

A user ordered a 10% minoxidil product with caffeine and retinol from Hair Medics UK and is seeking reviews. They are interested in higher percentage minoxidil treatments for hair loss.

community Finasteride has increased my Estradiol (estrogen) levels by 51% percentage

in Finasteride/Dutasteride 13 upvotes 1 year ago

Finasteride increased the user's estrogen levels by 51%, causing concerns about gynecomastia and sleep issues. Despite potential side effects, the user prefers continuing finasteride to prevent hair loss, considering it essential for self-esteem.

community New Hair Loss Cure: AMP-303 Is Back. It’s what PP405 should have been.

7 upvotes 5 months ago

AMP-303 and AMP-601 are new hair loss treatments targeting dermal papilla cells, with AMP-303 showing early efficacy in transitioning vellus hairs to terminal hairs after one injection. Further clinical trials are planned, and these treatments are seen as promising due to their biologic approach and less frequent application compared to daily treatments.

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Learn

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learn Hair Transplant

Hair transplantation moves DHT-resistant follicles from a donor area (back and sides of the scalp) into thinning or bald areas. The transplanted hair is generally permanent, though surrounding native hair can keep thinning.

What is the success rate of hair transplants? Hair transplants generally have a high success rate, but results can vary.
What is the graft survival rate in hair transplants? Graft survival rates in hair transplants typically range from 90% to 95%.

learn procapil

Can a liquid formula with Procapil do more than your usual multivitamin? Procapil is a cosmetic ingredient, not an approved hair-loss drug: the published studies on it are small and test it in combination with caffeine or platelet-rich plasma, so none isolates its own effect, and the percentages quoted in marketing come from the ingredient supplier's unpublished studies. Vitamins are reported to help hair only where there is a deficiency, so the two are aimed at different problems rather than ranked against each other.

learn Latanoprost

glaucoma medication with hair follicle stimulant effects

learn Overview

learn Dutasteride

Heavy duty finasteride that comes with higher risks

learn Tofacitinib

a JAK inhibitor for alopecia areata and other autoimmune conditions

learn PP405

Got small bald patches they say are from stress? PP405 sprays could help bring them back to life. PP405 is an experimental topical gel from Pelage Pharmaceuticals that inhibits the mitochondrial pyruvate carrier; its registered Phase 2 trial (NCT06393452) tested it once daily in 78 adults with pattern hair loss, for safety and tolerability. It is not approved, not for sale, and has not been studied in alopecia areata or stress-related shedding.

learn vitamin A

Are you unknowingly overdoing vitamin A? It could be speeding up hair loss linked to hormones like DHT. Sustained vitamin A intake above the tolerable upper limit (3,000 mcg/day of retinol for adults) is linked in case reports to diffuse hair shedding; the claim that it amplifies DHT-driven hair loss has no published human evidence behind it.

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SMP Specialist
Hairo Fallas
Newark, NJ, United States

Hairo Fallas