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Skin, Hair & Nails

Hair Loss & Scalp Health

Reviewed by the Nimbera editorial team · Last updated May 2026

Hair loss (alopecia) affects millions and ranges from gradual thinning (androgenetic alopecia) to patchy loss (alopecia areata) or diffuse shedding from nutritional, hormonal, or stress triggers. Scalp health, including circulation and sebum balance, plays a central role in supporting hair follicle function.

When to see a doctor

See a doctor if hair loss is sudden, occurs in patches, is accompanied by scarring or scalp inflammation, follows a new medication, or if more than 150 hairs are shed daily for more than a month. Rule out thyroid disorders, iron deficiency, and hormonal causes before starting supplements.

Natural remedies · 4

Tap any remedy for the full how-to and citation.

How we rate evidenceâ–¾

Strong - Multiple randomised controlled trials or systematic reviews with consistent positive outcomes.

Moderate - At least one RCT or several high-quality observational studies with plausible mechanisms.

Limited - Small trials, animal studies, or traditional use with limited human clinical evidence.

Sources link directly to PubMed, Cochrane Reviews, or NCCIH.

Rosemary Oil

topical
Panahi et al. 2015 Skinmed (PMID 25842469) - Randomized comparative trial in 100 adults with androgenetic alopecia found rosemary oil applied twice daily produced a significant increase in hair count at 6 months (p < 0.05 vs baseline), equivalent to minoxidil 2% with no significant between-group difference; scalp itching was less frequent in the rosemary group (p < 0.05).
$8-18/month

Pumpkin Seed Oil (for Hair)

ingestible
Cho et al. 2014 Evid Based Complement Alternat Med (PMID 24864154) - Randomized double-blind placebo-controlled trial in 76 men with androgenetic alopecia found 400 mg/day oral pumpkin seed oil for 24 weeks produced 40% mean hair count increase vs 10% in the placebo group (p < 0.001); self-rated improvement and satisfaction scores were also significantly higher (p=0.013 and p=0.003).
$14-20/month

Biotin (Vitamin B7)

ingestible
Patel et al. 2017 Skin Appendage Disord (PMID 28879195) - Review of 18 reported cases of biotin supplementation for hair and nail changes found all cases showed clinical improvement; however, all cases also had an underlying cause of biotin deficiency or a condition affecting biotin metabolism, and the authors concluded there is a lack of sufficient evidence for supplementation in individuals without confirmed deficiency.
$8-15/month

Scalp Massage

lifestyle
Koyama et al. 2016 Eplasty (PMID 26904154) - Pilot study in 9 healthy men receiving 4 minutes of standardized daily scalp massage for 24 weeks found significant increase in hair strand thickness from baseline (0.085 mm to 0.092 mm), along with upregulation of 2,655 hair-growth-related genes in stretched dermal papilla cells.
$0-35 one-time

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Remedy information is compiled from primary clinical sources including PubMed, the Cochrane Library, and the National Center for Complementary and Integrative Health (NCCIH). Evidence ratings reflect published human trial data at time of writing. This content is for informational purposes only and is not a substitute for professional medical advice. Read our full disclaimer.