The Ordinary Multi-Antioxidant Radiance Serum Dupes & Cheaper Alternatives
From 18 Reddit threads · Updated October 13, 2026
Vitamin C antioxidant serum for clearer-looking skin and gentle daily brightening; subtle results. The catch: few-week users may see no visible difference. Here's what Redditors reach for instead.
#1
Best Overall Alternative

20% Vitamin C + E Ferulic Acid Serum
Timeless·Serum
See alternatives20% L-ascorbic acid for visible brightening
- Size: 30 ml
The why
One minus
Burning and redness hit sensitive or tret-irritated skin
Good forDry Skin
The original, at a glance
- Why people love it
- Low-irritation vitamin C format for daily use
Other alternatives worth a look

15% L-ascorbic acid formula; vitamin C benchmark · 157 mentions
Dry SkinDewy Finish
15% pure L-ascorbic acid — the strongest vitamin C form · 80 mentions
LightweightVegan
10% 3-O-Ethyl Ascorbic Acid starter serum for sensitive skin · 27 mentions
Under MakeupGentle

15% ascorbyl glucoside brightening serum · 18 mentions
Gluten-Free
Brightens visibly and fades hyperpigmentation · 7 mentions

Watery, fast-absorbing centella · 533 mentions
Combination SkinOily Skin
Hydration monster for tight, flaky skin · 365 mentions
Combination SkinOily Skin
Browse more
Reddit's best serums by ingredient list
Looking for a different product?