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This study found that using poly(ethylene imine) as a counterion reagent improved the colorability and shampoo fastness of bleached human hair when dyed with an acid dye.

This study found that using a palmitoylated peptide, Pal-MPAPO, delivered through hydrogel microneedles effectively promoted hair regrowth in mice with efficacy comparable to minoxidil, while requiring less frequent application.

This study suggests that bovine and fish-derived collagen peptides may help maintain or prolong the hair growth phase and balance hair follicle stem cell populations, potentially benefiting aging and hair loss conditions like androgenetic alopecia.

Diphencyprone initially increases mouse hair growth, then slows it, possibly due to changes in specific protein levels.

This review outlines how peptidyl arginine deiminases (PADIs) and protein citrullination are involved in hair follicle regeneration and inflammatory alopecia, but presents no new clinical findings.

This study found that diphencyprone is an effective and safe treatment for extensive alopecia areata, especially with long-term therapy and maintenance to reduce relapse risk.

This review discusses the use of topical immunotherapy for severe alopecia areata and resistant viral warts, highlighting diphencyprone's advantages and the need for careful handling to avoid staff sensitisation; it reports no new clinical results.

This study found that multifunctional peptide-based materials derived from Crassostrea gigas may promote scarless dermal wound healing without affecting intestinal flora through both topical and oral administration.

This study found that orally administered hydrolyzed keratin peptide promoted hair growth and enhanced cellular proliferation and antioxidant capacity in mice and human cell models, suggesting its potential as a functional food ingredient for hair health.

This review discusses the role of peptidylarginine deiminases in skin homeostasis and diseases, particularly in keratinocyte differentiation and hair disorders, but presents no new experimental findings.

In this study, the novel fatty acid-conjugated tetrapeptide Palmitoyl-GDPH enhanced wound healing in rats by improving re-epithelialization and collagen deposition with minimal toxicity observed at the used dosage.

This study found that topical diphenylcyclopropenone was effective in treating severe alopecia areata but had a high relapse rate and was often accompanied by side effects like eczema and lymphadenopathy.

This study found that marine-derived collagen peptides slightly promoted hair matrix proliferation and prolonged hair growth phase in human hair follicles ex vivo, suggesting potential benefits for hair loss treatment.

This article reviews the role and clinical applications of 1,25-dihydroxyvitamin D3 and parathyroid hormone-related peptide in dermatology, with a focus on psoriasis treatment, and reports no new experimental findings.

Polyethylene alanine caused hair loss in young lab animals but not in adults, with hair regrowth occurring within 20 days.

This review highlights the potential of peptide-based PROTACs (pPROTACs) in expanding the target range of protein degraders beyond small-molecule limitations, particularly for undruggable proteins, by utilizing advances in design, conjugation, and bioPROTAC technology.

This invention reports piperazine derivatives as potent inhibitors of type 3 17β-hydroxysteroid dehydrogenase, suggesting potential therapeutic applications in treating prostate cancer, acne, and androgenic alopecia.

This study evaluated a novel synthetic cell-penetrating peptide, DualPep-ALO, finding it promotes hair growth by enhancing follicle cell proliferation, activating regenerative pathways, and reducing inflammation and oxidative stress in vitro and ex vivo, suggesting a promising new topical treatment for hair loss that rivals minoxidil.

This study found that AP collagen peptides can promote hair growth by supporting the health of hair follicle cells, as they stimulate cell proliferation, counteract apoptosis, and enhance antioxidant enzyme expression, suggesting potential as a treatment for hair loss.

This study found that the natural alkaloid cepharanthine effectively inhibited porcine epidemic diarrhea virus infection in newborn piglets.

This study successfully synthesized acetyl tetrapeptide-3 on a laboratory scale with over 56% yield and 100% purity, supporting its use in developing hair loss and scalp care products.

This chapter discusses the synthesis and analysis of near-infrared fluorescent activity-based probes for imaging cysteine protease activity, reporting potential benefits for disease diagnosis but noting challenges in imaging specific locations with high cathepsin activity.

This research observed that nanoliposomes delivering a combination of bioactive peptides significantly promoted hair growth in vitro and in vivo by enhancing the proliferation and function of hair growth-targeted cells in C57BL/6 mice, suggesting a promising approach for treating androgenetic alopecia.

This study found that arginine vasotocin is evolutionarily conserved across diverse taxa and may play roles in neuroendocrine, immune, and stress signaling, with potential antimicrobial applications.

In this study, researchers successfully synthesized a rigid 3a-arylhexahydropentalene-1,6-dione from the easily accessible starting material cyclopent-2-en-1-one, highlighting a structural motif common in natural products and pharmaceuticals.

This study suggests that adding imiquimod to diphenylcyclopropenone treatment significantly improves outcomes for alopecia areata patients who initially do not respond to diphenylcyclopropenone alone.

Keratin peptides can change hair shape gently without harsh chemicals.

This review highlights advancements in peptide-based treatments for hair loss, outlining their potential benefits and limitations, and suggests that combining peptide formulations with nanosystems may overcome existing challenges in hair regrowth therapies according to this source.

Certain peptides can prevent hair loss in young rats caused by a cancer drug.

This study found that the newly developed microarray patches for intradermal delivery of finasteride showed high drug content and significantly improved skin deposition compared to existing methods.