Timeless Skin Care 20% Vitamin C + E Ferulic Acid Serum — Efficacy 4.7/5.0, Safety 4.3/5.0 | DemythSkin
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[ DemythSkin Verdict ]
Timeless Skin Care 20% Vitamin C + E Ferulic Acid Serum

Timeless Skin Care 20% Vitamin C + E Ferulic Acid Serum

SerumBrightening
Efficacy
Exceptional
4.7 / 5.0
Safety
Safe
4.3 / 5.0
System Verdict
This is a clinically respectable, no-frills S Tier antioxidant serum in a very basic but correctly optimized formula. Efficacy is high because it uses 20% pure L-ascorbic acid at low pH ~2.4 with proven synergistic 1% vitamin E and 1% ferulic acid in a water–ethoxydiglycol base, but there are no extra barrier or calming buffers to offset sting or dryness, so performance is excellent for brightening/photo-protection yet somewhat aggressive for sensitive skin.
Active Ingredients Detected
S Tier: Gold StandardsHigh Clinical Proof | Skin-Transformative
L-Ascorbic Acid
A Tier: Good BasicsProven Results
WaterAlpha TocopherolPanthenolFerulic AcidSodium Hyaluronate
B Tier: Supporting IngredientsPromising Ingredients
EthoxydiglycolPropylene GlycolPolysorbate 80Dehydroacetic Acid
D Tier: Potential IrritantsBe Cautious
Benzyl Alcohol
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DemythSkin is an independent ingredient analyzer. Scores are computed by a deterministic rubric from published clinical evidence — no brand pays for a score.