Hyaluronic Acid 2% + B5

Shares both hero actives (sodium hyaluronate + panthenol/B5) plus madecassoside, but adds alcohol denat and fragrance which TO's version avoids.

Has plain sodium hyaluronate plus a fancier acetylated HA form, but lacks the B5/panthenol and the crosspolymer that give TO's serum its cushiony texture and hydration boost.

Has sodium hyaluronate as the main active but completely lacks panthenol/B5 and the HA crosspolymer, relying instead on soy protein and nasturtium extract for support.

Includes sodium hyaluronate but no panthenol/B5, and adds peptides, plant extracts, and mica/titanium dioxide that shift it toward a tinted overnight treatment rather than a simple HA+B5 hydrator.

Contains sodium hyaluronate but no panthenol/B5, and is loaded with silicones and fragrance that change the formula's purpose toward anti-aging/silky-feel rather than pure hydration.