Drunk Elephant
C‑Firma Day Serum
$79
Approx. retail price
Reviews
Pros
- Often described as brightening and firming, with a noticeably fresher-feeling vitamin C serum than older pre-mixed formats
- May suit those wanting a stable, high-percentage (15%) L-ascorbic acid serum since it is mixed fresh at first use
- Some users report a more even, radiant complexion with consistent daytime use under sunscreen
Cons
- The self-mixing step (combining two vials before first use) is an extra preparation step some users report finding inconvenient
- Formulated at a low pH (~2.5) for potency, which some users with sensitive skin report can cause initial tingling