Alpha Lipoic Acid
Also known as: ALA, thioctic acid, 1,2-dithiolane-3-pentanoic acid
Potent antioxidant that neutralizes free radicals and may improve skin texture and radiance.
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Get the appWhat it does
ALA is a coenzyme that acts as a powerful free radical scavenger, protecting skin from oxidative stress. It's both water- and fat-soluble, allowing it to penetrate cell membranes deeply. Studies suggest it may support collagen production and improve skin firmness and luminosity.
Benefits
- Strong antioxidant protection against environmental damage
- May improve skin texture and reduce fine lines
- Supports skin barrier function and hydration
- May help reduce redness and soothe irritated skin
- Works synergistically with other antioxidants
Who it suits
- all skin types
- aged skin
- dull or damaged skin
- sensitive skin
How to use
Apply in serums or creams, typically 0.5-5% concentration, once or twice daily. Allow previous layers to dry before application.
Pairs well with
Vitamin C, Vitamin E, resveratrol, niacinamide
Be careful pairing with
none notable
Safety & cautions
Alpha lipoic acid is generally well-tolerated but can cause mild tingling or sensitivity in some users, especially at high concentrations (>5%). Start with lower concentrations and introduce gradually. Not recommended for use immediately before sun exposure without adequate sun protection.
Educational information, not medical advice. Concentration and formulation change how an ingredient behaves.