Hydrogen

Hydrogen is the smallest and most abundant element in the universe. In skincare, it functions as a selective antioxidant — meaning it targets specific harmful free radicals (reactive oxygen species) without interfering with beneficial cellular signalling processes. This specificity distinguishes it from broader-spectrum antioxidants.When applied topically or delivered via hydrogen-rich formulations, hydrogen molecules penetrate skin tissue where oxidative stress occurs. It works by donating electrons to neutralise unpaired free radicals, converting them into harmless water molecules. This p…

Hydrogen acts as a selective scavenger of hydroxyl radicals and peroxynitrite — two particularly damaging types of free radical. Unlike some antioxidants that work through broad enzyme systems, hydrogen's small molecular size allows it to cross cellular membranes and reach mitochondria, where oxidative stress often originates.The mechanism appears to involve a redox reaction: hydrogen donates electrons to unstable free radical molecules, stabilising them into inert substances. This protects proteins, lipids, and DNA within skin cells from oxidative damage. Some evidence suggests hydrogen ma…

Hydrogen is typically found in skincare products formulated to maintain its stability, such as hydrogen-rich water serums or products with specialised delivery systems. Use as directed on product labels. Hydrogen works synergistically with other antioxidants and sun protection, so combine with a broad-spectrum SPF 30+ sunscreen during daytime use for optimal photoprotection. There is no established optimal concentration for cosmetic use, so product instructions should guide application frequency and amount.

Hydrogen is generally considered well-tolerated with no known toxicity concerns at cosmetic concentrations. As with any active ingredient, discontinue use if irritation occurs and perform a patch test before widespread application, particularly if you have sensitive skin.