Vitamin C Complex Serum
Reviewed by SerumTruth Editorial · Price and formula checked July 2026
A budget vitamin C that leans on the stable SAP form with a splash of the acid, aimed at the appearance of brightness. The derivative evidence is lighter than pure vitamin C and the percentages are undisclosed, but at this price the formula is thoughtful. A tidy, low-cost brightening option.
- No active concentrations are disclosed
- Evidence26 / 30
Strength of the research behind the key actives
- Sodium Ascorbyl Phosphate: moderate evidence
- Vitamin C (L-Ascorbic Acid): strong evidence
The average of the key actives’ evidence grades.
- Potency20 / 25
Dosed at studied levels, not fairy-dusted
- Sodium Ascorbyl Phosphate: dosed at a studied level
- Vitamin C (L-Ascorbic Acid): present, but below a studied dose
How strongly the actives are dosed, led by the strongest, not how many there are.
- Delivery & stability12 / 20
Delivery tech + packaging that protects fragile actives
- Delivery: standard
- Packaging: tinted glass
- Air- or light-sensitive actives (Vitamin C (L-Ascorbic Acid)), so packaging is scored.
Delivery tech plus packaging, and packaging only counts when actives are fragile.
- Formulation3 / 10
Disclosure, active breadth, and ingredient generation
- 0 of 2 actives disclose a concentration
- 2 key actives (breadth credit caps at 3)
- Current-generation or synergistic: Sodium Ascorbyl Phosphate
Disclosure, active breadth, and current-generation or synergistic actives.
- Value14 / 15
What a month of use costs vs. the category
- About $13 per month to use
- $21 for 30 ml, used about twice a day (about 0.3 ml each time), so a bottle lasts about 1.7 months
What a month of use costs: full marks at $6 a month or less, the floor at $60 a month or more.
Tap any row to see how its score was built.
Ranks #9 of 27 vitamin c & antioxidants serums we have scored.
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What’s inside
| Active | Disclosed | Dose |
|---|---|---|
| Sodium Ascorbyl Phosphate | n/a | Studied |
| Vitamin C (L-Ascorbic Acid) | n/a | Light |
A dual vitamin C system of stable sodium ascorbyl phosphate plus a smaller amount of L-ascorbic acid, with glutathione and fruit extracts, in a frosted-glass dropper. The glutathione is included to help recycle spent vitamin C, and the SAP does most of the work while staying stable. None of the levels are disclosed.
How it’s delivered
Air- and light-sensitive actives (vitamin C, copper peptides) lose potency fast in the wrong packaging, so delivery and the bottle are scored, not just what’s on the label.
The actives, explained
What the research says
In human volunteers, a 5% sodium ascorbyl phosphate gel was linked to reduced looking crow's feet wrinkle depth and better skin elasticity.
Comparative physicochemical stability and clinical anti-wrinkle efficacy of transdermal emulgel preparations of 5% sodium ascorbyl phosphate and or ascorbic acid on human volunteers. Journal of Cosmetic Dermatology, 2021. PubMed ↗
A 6-month double-blind trial found topical vitamin C linked to a better looking global appearance of photoaged skin versus placebo.
Topical ascorbic acid on photoaged skin. Clinical, topographical and ultrastructural evaluation: double-blind study vs. placebo. Experimental Dermatology, 2003. PubMed ↗
A study of the active, not this exact product. What matters for the score is whether this serum uses it at a comparable dose.
Higher-scoring alternatives
Same category, better SerumProof score. Worth a look before you buy.
Revision history
- July 11, 2026Price and formula rechecked
- July 10, 2026Review published
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Cosmetic information for general education, not medical advice. The SerumProof score reflects our reading of publicly available research and formulation disclosures. See how scoring works.