COSRX - Sharonspendstoomuch review for The Niacinamide 15 Serum

I received this serum plus 2 others in a Try Me Review Me beauty box, in exchange for my honest review. This serum is described as a “total care” serum, containing the maximum 15% niacinamide active ingredient that provides both brightening benefit as well as controlling acne, excessive sebum & large pores. I don’t have issues with acne, but I do like products with niacinamide to reduce hyperpigmentation & brighten skin. This serum is recommended for oily or acne prone skin, but also works for dry skin. Benefits: ▪️Provides total acne care ▪️Exfoliates & smooths rough skin ▪️Controls Sebum & Oil Key Ingredients: ▪️Niacinamide ▪️N-Acetyl Glucosamine (NAG) ▪️Zinc PCA ▪️Allantoin Packaging: 20ml dark brown bottle with glass pipette Texture: Clear watery texture My Experience: I’ve now been using this serum for a few weeks (AM only) in combination with the other 2 serums (HA, Niacinamide, then Vit C). It has a watery texture with no scent. Although it spreads easily, it is slightly tacky on my skin until it absorbs completely. The packaging reminds me of The Ordinary. This serum features 15% niacinamide as the active ingredient, which is the highest concentration I have seen in a product. Most products I’ve tried are at around 5%. The sub-ingredients include NAG, a mild AHA substitute that moisturizes & removes dead skin cells. When combined with Niacinamide, NAG helps improves hyperpigmentation. Zinc PCA reduces excess sebum & Allantoin soothes & protects skin. I did not experience any irritation, & this serum seems to help calm redness. I notice an instant brightening effect & combined with the VitC serum from this line looks more even toned. PAO is 12 months & a little bit goes a long way. I like this serum so far, but I’m more interested in anti-aging & hyperpigmentation correction vs. the acne control for this serum.