10% Niacinamide + Glutathione Brightening Serum

This 10% niacinamide serum works really well for my dull skin. After two weeks, my complexion looks more even. It’s lightweight and absorbs fast, no sticky feeling. I use it both morning and night.

Great daily brightening serum! Glutathione plus niacinamide is a nice combo. My skin feels smoother, redness is less noticeable. Perfect for my normal skin type.

Decent serum overall. Absorbs quickly, texture is nice. I see slight brightening but results are not super fast. Need to keep using consistently. Good value for the price.

Love this HZA serum! Doesn’t break me out. My skin tone is much brighter. It layers well under moisturizer and makeup. Will repurchase.

I’ve tried many niacinamide products. This one feels gentle on sensitive skin. No irritation. Over three weeks dark spots are fading little by little. Highly recommend.

Light‑weight, non‑sticky as described. Fits my morning & night routine. Skin looks glowing, less dull. 20ml size is convenient for travel.

Texture is pleasant, sinks in right away. Brightening effect is mild, don’t expect overnight magic. Good everyday maintenance serum.

My skin used to look tired and uneven. This serum changed it. Skin feels soft and radiant. No bad smell. Very happy with purchase.

Nice brightening serum for men too. Simple routine addition. Reduced the dull look on my forehead. Absorbs without greasy residue.

Great combination of niacinamide and glutathione. It helped smooth my skin texture. Works well under sunscreen. Would buy again.

Really nice daily care product. Gentle yet effective. My skin tone looks balanced. I subscribe & save for refills, totally worth it.