Remedy Daily Defense 15% Vitamin C Antioxidant Complex Brightening Serum Dupes & Cheaper Alternatives
From 13 Reddit threads · Updated October 10, 2026
15% vitamin C plus antioxidants for brighter mornings; non-irritating, barrier-friendly. The catch: not the cheapest vitamin C at $27. Here's what Redditors reach for instead.
The short answer
Best Overall AlternativeClose CE Ferulic dupe · $25.16 · 30 ml
Best Cheaper Alternative5% THD vitamin C — the gentle starter pick · $16.12 · 35.5 ml vs $27.99 for the original
#1
Best Overall Alternative
- Key actives: Vitamin C 20%, L-Ascorbic Acid 20%
- Size: 30 ml
- Price per ml: $0.84/ml (original $0.95/ml)
The why
One minus
Can sting or burn on sensitive skin
Good forDry Skin
The original, at a glance
- Why people love it
- 15% vitamin C with a real antioxidant stack
- Price
- $27.99 · 29.6 ml · $0.95/ml
#2
Best Cheaper Alternative
- Size: 35.5 ml
- Price per ml: $0.45/ml (original $0.95/ml)
The why
A 5% tetrahexyldecyl ascorbate serum with ceramides and glycerin that fits AM routines and layers under SPF. It’s aimed at sensitive skin and tret beginners, though some people see no change or get acne flare-ups.
One minus
Acne-prone folks report deep, inflamed spots
Good forSensitive Skin, Dry Skin
#3
Same Active: Vitamin C
The why
An ascorbic-acid essence with vitamin E, dipotassium glycyrrhizinate, and a stabilizing tube for morning spot-fading. It suits people chasing post-acne marks and overall brightening. Oily texture and fragrance can annoy reactive or acne-prone skin.
One minus
Oily feel can linger and pill under other layers
Good forDry Skin
Other alternatives worth a look
Tranexamic acid + niacinamide for PIH · 103 mentions
Combination SkinDewy Finish
Stable vitamin C that doesn’t sting easily · 42 mentions
Cruelty-FreeGluten-Free
Brightening blend, not just vitamin C · 40 mentions
Oily SkinCombination Skin
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