The Ordinary Amino Acids + B5 Dupes & Cheaper Alternatives
What Reddit recommends instead — 39 products with similar benefits · Updated July 31, 2026
For Dehydration
For Skin Barrier
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Includes 20% L-Ascorbic Acid with Vitamin E & Ferulic Acid for powerful antioxidant benefit
1 shared trait·240 mentions
3.8
SkinCeuticals
C E FerulicClinically backed 15% L-ascorbic acid with E and ferulic for antioxidant and collagen boost
1 shared trait·123 mentions
3.5
Beginner-friendly retinol with hydrating ceramides and niacinamide
1 shared trait·111 mentions
3.4
Potent 10% niacinamide + 4% tranexamic acid combo targets stubborn dark spots and sun-induced pigmentation
1 shared trait·96 mentions
3.4
Cos De BAHA
Tranexamic Acid 10% SerumCombines tranexamic acid with niacinamide and hyaluronic acid for brightening and hydration
1 shared trait·41 mentions
3.6
High 23% vitamin C concentration delivers quick fading of dark spots and glow
1 shared trait·38 mentions
3.9
Mad Hippie
Vitamin C SerumGentle vitamin C form (Sodium Ascorbyl Phosphate) praised for being less irritating than L-ascorbic acid
1 shared trait·29 mentions
3.6
Medik8
Liquid PeptidesCosmetically elegant formula that visibly plumps skin quickly
1 shared trait·25 mentions
3.7
Naturium
Vitamin C Complex SerumStabilized formula avoids ultra-low pH, making it gentler on sensitive skin than typical L-ascorbic acid serums
1 shared trait·21 mentions
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