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This source reports that while creatine supplementation is popular for improving muscle mass and performance, questions about its efficacy and safety persist. An expert team is reviewing literature to address concerns like water retention, renal effects, and its benefits across different populations and uses.

This study summarizes current knowledge on the role of creatine in the human body, its applications in supplementation, and its impact on muscle mass, especially noting that animal-based foods are primary dietary sources and that women may experience health benefits from supplementation.

This review concludes that creatine monohydrate is a safe and effective supplement, offering potential health benefits beyond athletic performance; however, it addresses concerns regarding its use among specific populations and effects on various health aspects.

In this narrative review, researchers examined common misconceptions and questions about creatine monohydrate, addressing issues such as its potential effects on muscle benefits without exercise, interactions with caffeine, inflammatory properties, safety during pregnancy, and effects on adolescents, among others.

In this study, creatine supplementation over 12 weeks showed no effect on androgen levels or hair follicle health in healthy young males, challenging the belief that creatine causes hair loss.

This investigation found that certain supplements, particularly whey protein isolate, growth hormones, and anabolic steroids, can negatively impact hair loss by affecting biochemical pathways.

This review discusses the presence of undeclared substances, including androgenic steroids, in sports supplements and emphasizes potential health risks, without providing new results; it advises caution and consultation on supplement use.

This study explored using 3D models derived from reflectance confocal microscopy to better understand and differentiate melanoma on sun-damaged skin, suggesting enhanced diagnostic possibilities.

This study reports that selenium deficiency in children on long-term total parenteral nutrition may lead to symptoms like erythrocyte macrocytosis and skin and hair depigmentation, which improved with selenium supplementation.

This study reports that hypomorphic alleles of the Ass1 gene in mice resemble human CTLN1, providing a potential model for preclinical studies and indicating that standard treatments for CTLN1 can rescue phenotypes.

This case report suggests that zinc supplements may be necessary to improve hair loss in hypothyroidism patients being treated with thyroxine.

This study observed that baricitinib treatment led to significant improvements in hair regrowth and quality of life scores in adults with severe alopecia areata over 24 weeks, with an acceptable safety profile as most adverse effects were transient.

Alopecia areata involves complex immune cell interactions, especially between CD8+ T cells and macrophages, which could help develop new treatments.

In this analysis, safety data from two clinical trials showed that baricitinib for severe alopecia areata had predictable side effects like infections and elevated CPK, with some serious adverse events noted at low incidence rates; no deaths were reported.

This study found that L-glutamine supplementation in Hanwoo steers under heat stress did not affect growth performance or muscle and adipose tissue gene expression but was associated with increased immune cells and reduced HSP90 expression.

This case report describes an eight-year-old male with alopecia areata who achieved complete remission within five months following a diet and supplementation regimen rich in vitamins and zinc.

This study reports that a nutritional complex may improve hair density and quality, with in vitro findings demonstrating inhibition of 5α-reductase, and participants noting reduced hair loss and greasiness.

This review suggests that although hydrolyzed collagen peptides with certain supplements may improve skin elasticity and joint function, evidence for collagen's anti-aging and regenerative benefits remains inconsistent.

This study found that an oral marine protein supplement significantly increased hair growth and reduced hair shedding in women with temporary thinning hair over 90 days compared to a placebo.

This study found that, in female patients with idiopathic telogen effluvium, a supplement containing zinc, biotin, and other nutrients significantly improved hair loss and quality over 180 days, whereas another supplement with different ingredients had less consistent effects.

This study found that ginger supplementation significantly improved persistent hypothyroid symptoms and may aid in weight and lipid profile management in hypothyroid patients with normal TSH levels.

In this study, saw palmetto supplements showed varied effects on cell growth in vitro and did not significantly inhibit growth in the hamster flank organ model despite a notable trend.

In this study, zinc supplementation at 2.00 g/camel/day improved hair growth in lactating camels but did not affect milk production, while for calves, doses of 0.50–0.75 g/camel/day enhanced growth and hair development.

In this study, the authors reported that feeding cashmere goats with essential oil-cobalt significantly enhanced their growth, meat quality, and fiber quality, while stimulating immune-related physiological changes.

This review discusses commonly used dietary supplements for hair growth and highlights the lack of evidence supporting their efficacy and safety in the absence of nutritional deficiency; it reports no new research results.

This study found that pre-ruminant crossbred calves supplemented with sodium butyrate had significantly lower alopecia scores compared to those receiving a probiotic and emulsifier, though both groups experienced alopecia between the 2nd and 6th weeks.

In this randomized, placebo-controlled study, Kūlaris supplementation significantly improved quality of life for participants with mild-to-severe acne over 12 weeks, though no significant changes in general skin health measures were observed compared to placebo.

This study observed that patients with post-COVID telogen effluvium had lower serum ferritin levels than controls, but the levels were not indicative of nonanemic iron deficiency.

This review underscores the importance of phytotherapeutic compounds and adjuncts in managing polycystic ovarian syndrome but does not present new clinical evidence.