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This study observed that differences in the expression of genes related to lipid metabolism may play a major role in determining wool fiber diameter in sheep.

This review highlights research reporting that oral collagen peptide supplements are effective in enhancing skin elasticity, hydration, and reducing wrinkles, although results vary across studies. Oral supplementation was generally well-tolerated, and further investigation is needed to optimize formulations and explore topical application challenges.

This study concluded that using Plasma gel and PRP as autologous collagen biostimulators improved acne scars and skin density, demonstrating efficiency and safety for facial rejuvenation in clinical evaluations including patient satisfaction.

This study found that age-related changes in scalp dermal fibroblasts, including increased MMP-1 and reduced ECM components, may significantly affect the hair follicle environment and contribute to hair aging.

This review discusses the relationship between estrogen deficiency and skin aging in postmenopausal women, noting potential benefits of estrogen use on skin collagen and elasticity, but reports no new clinical results.