Centella is high in antioxidants, including vitamin A & C; serum also includes Niacinamide, Panthenol, various peptides, Camellia Sinensis Leaf Extract, and Dipotassium Glycyrrhizate (licorice root extract)

One of the few face sunscreens without silicones or alcohols. Though it has centella, it does not include niacinamide or other "extras" present in the serum, so it is still beneficial to layer.

Would prefer a serum that absorbs better and doesn't pill. But this works for now, given its lack of silicone (unlike The Ordinary or Paula's Choice), add'l exfoliants (unlike PC), or loads of extra botanicals (like Facetheory's Lumizela).

Based on my internet research, this seems to be the best balance of minimal irritation + maximal effectiveness currently available in OTC retinoids.

Seems to pair well with the cosrx toner, though I tend to use it the next AM upon waking (but before my normal AM/post-workout skincare)

The Oat-In Intense Cream is soothing and beautifully simple, reducing potential interactions or accidental overuse of active ingredients from multiple products.