Glycolic acid is a substance that chemically exfoliates a person’s skin by dissolving dead skin cells and oils. Glycolic acid may also help boost collagen production, and support skin moisture.

Beta-alanine is an amino acid popular in supplements because it may help improve athletic performance and muscle recovery. Made in the liver and found in some foods, beta-alanine is needed to ...

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Animal experiments – such as the Lethal Dose 50% test (LD50) – are cruel, outdated and scientifically unreliable. Thankfully there are now more advanced ways to test the toxicity of substances without ...