C-Glow

Clinically optimized Vitamin C formula with excellent stabilization strategy, but severely compromised by aggressive pH and short shelf-life instability. The 15% L-Ascorbic Acid at pH 3-3.4 with synergistic Ferulic Acid + Vitamin E represents textbook antioxidant formulation chemistry. However, the efficacy score is capped at 4.0 because: (1) Pure Ascorbic Acid at this pH is inherently unstable—the brand admits an 8-month shelf-life from production, with degradation beginning immediately; (2) By the time users receive it (2-4 weeks old), potency is already compromised; (3) The low pH makes this unsuitable for sensitive skin despite marketing claims of "all skin types"; (4) Dimethyl Isosorbide is an excellent solvent choice, but cannot fully overcome Vitamin C's notorious instability in aqueous solutions. This is a well-formulated product undermined by the fundamental chemistry of its active ingredient. If you're looking for vegan skincare, this is worth evaluating.

This is a fragrance free skincare formula, making it suitable as fragrance free skincare for sensitive skin. The S Tier gold-standard ingredients in Unknown C-Glow are L-Ascorbic Acid. Phenoxyethanol is present — a formulation-base ingredient with rare sensitisation reports, not a documented irritant.

Unknown C-Glow has a safety score of 4.1/5. The only ingredient flagged is Phenoxyethanol, a formulation-base ingredient with rare, low-frequency sensitisation reports. It is not a concern for most people, but worth knowing if your skin is reactive. As a fragrance free moisturiser suitable for sensitive skin care, it avoids common triggers for reactivity.

Based on its formulation, Unknown C-Glow is best suited as a moisturizer for sensitive skin.

DemythSkin recommends: GOOPGLOW 20% Vitamin C + Hyaluronic Acid Glow Serum — Two-part stabilization system (powder + serum mixed at use) maximizes freshness and potency throughout product life. Higher 20% Vitamin C concentration with added hydration from three molecular weights of hyaluronic acid. Addresses shelf-life degradation through innovative packaging design.. Hello PRFCT C Glow Serum (20% Vitamin C) — Higher 20% L-Ascorbic Acid concentration with Ferulic Acid + Vitamin E synergy. Same stabilization strategy but potentially better potency delivery due to higher active concentration offsetting some degradation concerns.. IKNOW Skincare Glow Booster+ Vitamin C & E Serum — Combines Vitamin C + E + Ferulic Acid with added Hyaluronic Acid for hydration. Broader formulation approach addresses both antioxidant protection and skin barrier support without the extreme pH sensitivity of pure Ascorbic Acid serums..

Based on DemythSkin's INCI analysis, no fragrance, parfum, or essential oils were detected in Unknown C-Glow's formula. This makes it a strong candidate as a fragrance free moisturiser for dry skin or fragrance free skincare for sensitive skin care routines. Always cross-check the current label as formulas can change.

DemythSkin scores every product out of 5.0 on two separate axes: Efficacy (does the formula deliver its claims?) and Safety (will it irritate?). Ingredients are graded S Tier (gold standards, high clinical proof), A Tier (reliable), B Tier (supporting), C Tier (overhyped | marketing) and D Tier (documented irritants — added fragrance, drying alcohol, essential oils). Preservatives, emulsifiers and thickeners are shown as formulation base and count as neither good nor bad.