Prime Day Deal: TruSkin’s Cult-Favorite Vitamin C Serum (Big 2 oz) Is 43% Off

Brit+Co Staff on June 20, 2026

A vitamin C serum is one of the few skincare steps almost every routine agrees on — and TruSkin’s is the one that keeps landing in carts, with well over 150,000 reviews behind it. It pairs vitamin C with hyaluronic acid and vitamin E to brighten and even tone, and for Prime Day the big 2 oz value bottle is 43% off.

The deal

For Prime Day — June 23–26, 2026 — the 2 oz bottle of TruSkin Vitamin C Facial Serum is 43% off, down to $19.94 (from $34.99). It’s a Prime Day deal, so a Prime membership is required, and the price ends when the event closes on June 26 (or earlier if it sells out). The 2 oz is the better value — double the serum of the standard 1 oz bottle.

What it is

It’s a brightening vitamin C facial serum built around Sodium Ascorbyl Phosphate (SAP) — a stable, gentler form of vitamin C — blended with hyaluronic acid, vitamin E, aloe vera, witch hazel and MSM. TruSkin positions it for improving the look of dark spots, fine lines and wrinkles across all skin types, and it’s cruelty-free (Leaping Bunny certified). This is the 2 fl oz (60 mL) size.

How to use it

After cleansing, apply up to one dropperful to your face, neck and the backs of your hands, up to twice a day, then follow with moisturizer. Vitamin C pairs well with a morning routine under sunscreen for daytime antioxidant support. If you’re new to actives, start once daily to let your skin adjust. The 2 oz bottle lasts a good while at that pace, which is what makes the value size worth it.

Who it’s for

It’s for anyone who wants a well-reviewed, do-it-all brightening serum without a luxury price — especially regular users who’ll go through a bottle, since the 2 oz is the cost-per-ounce winner. Because it uses the gentler SAP form of vitamin C, it tends to suit sensitive skin better than harsher L-ascorbic acid serums. If you just want to try it first, the smaller 1 oz bottle is the lower-commitment option.

Frequently asked questions

When is the Prime Day deal?
The 43% discount — down to $19.94 (from $34.99) — runs during Amazon Prime Day, June 23–26, 2026. A Prime membership is required, and the price ends when the event closes (or earlier if it sells out).
What’s in it?
A stable form of vitamin C (Sodium Ascorbyl Phosphate) plus hyaluronic acid, vitamin E, aloe vera, witch hazel and MSM. TruSkin markets it for brightening and the look of dark spots, fine lines and wrinkles, for all skin types.
What’s the difference between the 2 oz and 1 oz?
Same formula — the 2 oz (60 mL) bottle is simply double the size and the better per-ounce value. The 1 oz (30 mL) is a smaller, lower-commitment option.
Where can I buy it?
It’s available at Amazon — use the button above for the current listing and price.