Research Paper: In Vitro Evaluation Methods for Developing Functional Cosmetic Ingredients

Collagen peptides are recommended for hair and skin benefits, with users noting improvements in hair and skin health. However, evidence on their effectiveness for hair growth is inconclusive.

Collagen peptides may help with hair growth, but results vary; some users noticed less hair fall and improved nail strength. Minoxidil is suggested for regaining hair thickness lost from accutane.

The conversation discusses potential hair loss treatments focusing on stimulating IGF-1 at the follicle level using growth-factor cocktails and engineered peptides, such as Acetyl Tetrapeptide-3, Copper Tripeptide-1, Oligopeptide-20, Thymosin-β4, and Palmitoyl Tetrapeptide-7. It suggests that device-assisted delivery methods like microneedling may enhance effectiveness.

Matrixyl 3000 is discussed as a potential topical treatment for hair growth, but concerns are raised about excess collagen production being a consequence of hair loss. The conversation suggests that androgen-induced miniaturization leads to hair follicle death and skin fibrosis.

The user is using Minoxidil, vitamin D, zinc, biotin, collagen, and micro-needling for hair regrowth. Some users suggest biotin and collagen are ineffective and emphasize the need for a DHT blocker for lasting results.

MCL-1 protein may help maintain hair follicles in the growth phase and prevent miniaturization. There is interest in experimental treatments like exosomes, peptides, or stem cell serums to upregulate MCL-1 for hair loss, especially for those not using minoxidil or finasteride.