May 2026 in “Journal of Nanobiotechnology” The study developed a palmitoylated peptide, Pal-MPAPO, incorporated into a hyaluronic acid-based hydrogel microneedle system for effective transdermal delivery to promote hair regeneration. The microneedles demonstrated sufficient mechanical strength for skin insertion and enabled prolonged release of the peptide. In human dermal papilla cells, Pal-MPAPO activated the Wnt/β-catenin pathway and increased cAMP levels primarily through VPAC1, with no significant role for VPAC2. Molecular interactions were confirmed through various simulations and imaging techniques. In a C57BL/6 mouse model, the Pal-MPAPO-loaded microneedles significantly enhanced hair regrowth, showing similar efficacy to minoxidil but requiring less frequent application. This suggests Pal-MPAPO as a promising candidate for hair regeneration with the hydrogel microneedle system offering a targeted delivery method.
March 2026 in “International Journal of Cosmetic Science” Pal-KCV peptide strengthens hair and reduces breakage by up to 52%.
8 citations
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June 2024 in “Pharmaceutics” PEA-ENL improves skin delivery and reduces inflammation without side effects.
October 2023 in “Journal of Cosmetic Dermatology” A synthetic octapeptide may help promote hair growth and counteract hair loss.
March 2025 in “Journal of Science Natural Science” Acetyl tetrapeptide-3 was successfully made for use in hair loss treatments.
A new peptide, murikal/SPR4, was found to significantly increase hair growth in mice, and its liposomal topical formulations enhanced hair growth more than commercial products. However, results on human scalp skin were unclear, needing more tests.
September 2019 in “Journal of Investigative Dermatology” PCE-DP brightens skin and promotes hair growth by enhancing cell growth and reducing melanin uptake.
3 citations
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September 2021 in “Bulletin of the Korean Chemical Society” Dimeric peptide derivatives could help hair growth and treat hair loss safely.
3 citations
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May 2019 in “Journal of Cosmetic Dermatology” Pro-Ile could be used in cosmetics to improve skin, hair growth, and healing.
July 2024 in “Journal of Investigative Dermatology” A peptide in shampoo can promote hair growth and improve hair condition.
46 citations
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August 2003 in “The journal of investigative dermatology/Journal of investigative dermatology” Phosphatidic acid may help hair grow by affecting cell growth pathways.
9 citations
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August 2005 in “Experimental Dermatology” Modified pep7, named EPM peptide, effectively promotes hair growth at low concentrations and works well with minoxidil.
52 citations
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May 2011 in “Journal of Neuroendocrinology” PEA boosts allopregnanolone production and reduces oxidative stress in brain cells.
14 citations
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August 2020 in “Journal of cosmetic dermatology” Experts recommend using PN-HPT™ for skin rejuvenation in various body areas but have less agreement on initial facial treatment cycles.
13 citations
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February 2024 in “Clinical Cosmetic and Investigational Dermatology” Polynucleotides HPT improves Asian skin tone, firmness, and glow safely.
3 citations
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March 2016 in “Journal of Cosmetic Dermatology” GPIGS peptide increases thick hair growth in balding Japanese men.
January 2005 in “Life sciences” Targeting LPA could help treat skin disorders.
June 2023 in “Clinical Cosmetic and Investigational Dermatology” Pentoxifylline effectively improves pretibial pruritic papular dermatitis.
11 citations
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April 2020 in “Life sciences” Pantothenic acid helps mink hair follicles grow by affecting certain cell signals.
61 citations
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May 2016 in “Scientific reports” The peptide IMT-P8 can effectively deliver proteins into the skin and cells for potential skin treatments.
17 citations
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August 2007 in “Bioorganic & Medicinal Chemistry Letters” A compound made by Pfizer can potentially stimulate hair growth and reduce oil production, making it a good candidate for topical use.
Polyglutamic acid is a valuable, sustainable ingredient for skincare and haircare products.
59 citations
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January 2015 in “Nanoscale” The new micelle formulation delivers acne treatment more effectively and safely than current gels.
6 citations
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February 2023 in “Journal of nanobiotechnology” The new anti-acne treatment HA-P5 effectively reduces acne by targeting two key receptors and avoids an enzyme that can hinder treatment.
June 2015 in “Han'gug eung'yong saengmyeong hwa haghoeji/Journal of the Korean Society for Applied Biological Chemistry” Some synthesized peptides improved cell growth better than thymosin β4, VEGF, and minoxidil.
August 2003 in “Journal of Investigative Dermatology” Phosphatidic acid may promote hair growth like minoxidil.
26 citations
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December 2006 in “Endocrinology” A cream with a specific hormone blocker increases hair growth in mice.
April 2026 in “BMC Biotechnology” A new peptide, DualPep-ALO, may help hair growth by reducing inflammation and boosting growth factors.
May 2026 in “Commagene Journal of Biology” Anti-aging peptides are promising in cosmeceuticals for improving skin appearance by targeting biological mechanisms of skin aging. They stimulate extracellular matrix protein synthesis, inhibit matrix-degrading enzymes, enhance skin barrier integrity, suppress inflammation, and modulate micro-muscle contractions. Despite their potential and generally favorable safety profiles, challenges such as peptide stability, purity, effective skin penetration, and limited standardized clinical data remain. Future advancements in delivery technologies and rigorous clinical research are necessary to overcome these barriers and enhance the effectiveness of peptide-based formulations.
November 2019 in “British Journal of Dermatology” FOL-005 peptide may help treat excessive hair growth safely.