nextbest

See what everyone's saying

← Back to Vitamin C & Astaxanthin Serum

VT Vitamin C & Astaxanthin Serum Dupes & Cheaper Alternatives

From 5 Reddit threads · Updated November 11, 2026

Several vitamin C forms and astaxanthin for antioxidant glow; comfortable, nourishing texture. The catch: limited detailed reviews; one commenter had not used it. Here's what Redditors reach for instead.

The short answer

  1. Green Tangerine Vitamin C Dark Spot Care Serum
    Best Overall Alternative

    Gentler vitamin C derivative than harsher formulas · $23.25 · 40 ml

  2. Dark Spot Correcting Glow Serum
    Best Cheaper Alternative

    Light gel with fast absorption · $1.98 · 5 ml vs $22.00 for the original

  3. No.5 Vitamin Concentrated Serum
    Same Active: Vitamin C

    Tranexamic acid plus niacinamide for pigment-focused routines · $17.00 · 29.9 ml

#1

Best Overall Alternative

  • Size: 40 ml
  • Price per ml: $0.58/ml (original $0.74/ml)

The why

A light water-gel serum pairing ascorbyl glucoside, niacinamide, and arbutin for gradual brightening and fresh post-acne marks. Redditors with sensitive or reactive skin appreciate the gentler feel, but tackiness, fragrant essential oils, and inconsistent pigment fading divide opinion.

One minus

Too mild for stubborn pigmentation; several users saw little brightening

Good forSensitive Skin

The original, at a glance

Why people love it
Water-fit texture Redditors find comfortable and nourishing
Price
$22.00 · 29.9 ml · $0.74/ml

#2

Best Cheaper Alternative

  • Key actives: Niacinamide 5%
  • Size: 5 ml
  • Price per ml: $0.40/ml (original $0.74/ml)

The why

A 5% niacinamide serum with sodium hyaluronate and squalane, used for stubborn discoloration and a quick dewy finish. Redditors love the light gel and occasional fast payoff, though others see nothing after months or experience breakouts.

One minus

Results are wildly inconsistent

#3

Same Active: Vitamin C

  • Size: 29.9 ml
  • Price per ml: $0.57/ml (original $0.74/ml)

The why

This multi-active brightening serum layers easily and suits dry or combination skin chasing acne marks and uneven tone. Redditors report fading for some; studies found topical niacinamide’s acne results uncertain. People with reactive, breakout-prone skin report irritation and breakouts.

One minus

Not a true vitamin C serum; the vitamin C content is viewed as too weak

Good forSensitive Skin, Dry Skin

Other alternatives worth a look

Looking for a different product?

We use cookies to improve your experience. Learn more