critical component of the glutathione peroxidase antioxidant enzyme system Frontiers Selenium and Selenoproteins: Mechanisms, Health

Never recap needles, as this increases the risk of needlestick injury

2013 Aug;18(15-16):785-92

Check out more complexion-enhancing skin-care products: 16 Best Dark Spot Correctors to Minimize Hyperpigmentation 15 Best Face Masks to Renew and Revitalize Skin Our Favorite Face Serums for Every Skin Concern 12 Best Pimple Patches to Tackle All Sorts of Breakouts Now, watch beauty mogul Huda Kattan walk through her everyday glam routine: Don't forget to follow Allure on Instagram and TikTok, or subscribe to our newsletter to stay up to date on all things beauty.

GHK-Cu (copper peptides) is a popular peptide in the beauty and longevity space, which is often taken as a subcutaneous injection or through medispa treatments like microneedling and you can even find some experimental oral GHK-Cu tablets but it's mostly known for skin rejuvenation, hair health, wound healing, and healthy aging

In: Campos Chist, R., Helena de Aguiar Andrade, E., Santana de Oliveira, M

This isn't just a "fat burner." Standardized green tea extract operates on multiple pathways: Enhances mitochondrial biogenesis (cellular energy production) Improves glucose uptake and insulin signaling Modulates AMPK pathways for metabolic flexibility For formulators, this represents an evolution