15% Vitamin C (EAA) Serum
Fair15% Vitamin C (EAA) Serum
Dullness, hyperpigmentation, antioxidant protection, brightening

A 15% Ethyl Ascorbic Acid (3-O-Ethyl Ascorbic Acid) serum using a stable, anhydrous-friendly vitamin C derivative rather than pure L-Ascorbic Acid. EAA converts to ascorbic acid af…

A 15% Ethyl Ascorbic Acid (3-O-Ethyl Ascorbic Acid) serum using a stable, anhydrous-friendly vitamin C derivative rather than pure L-Ascorbic Acid. EAA converts to ascorbic acid after skin absorption and does not require the low pH that makes L-Ascorbic Acid formulas unstable and irritating. Ferulic Acid and Tocopherol provide antioxidant stabilisation. Key concern: Citrus Aurantium Bergamia (Bergamot) and Citrus Limon Peel Oil are included - both contain furanocoumarins (notably bergapten) that are phototoxic on UV-exposed skin. Brand does not explicitly flag sun exposure caution for a brightening serum marketed for daytime use.
The primary safety concern with this serum is the inclusion of Citrus Aurantium Bergamia Fruit Oil (Bergamot) and Citrus Limon Peel Oil. Bergamot oil contains bergapten, a furanocoumarin that is phototoxic when skin is subsequently exposed to UV light - it can cause burns, blistering, and lasting hyperpigmentation. The EU limits bergapten to 0.0015% in leave-on products used on sun-exposed skin (Annex III). A bergapten-free (FCF) version of Bergamot oil exists, but Pilgrim does not state whether they use it. Lemon Peel Oil carries similar furanocoumarin content, compounding the risk. Neither the sun-avoidance guidance nor the FCF status is communicated on the product page.
Ethyl Ascorbic Acid (EAA) at 15% is a good choice for a stable vitamin C serum. Unlike L-Ascorbic Acid, it does not require low-pH or anhydrous packaging to remain active - it converts to ascorbic acid after skin absorption. Ferulic Acid enhances antioxidant activity and helps stabilise EAA. Tocopherol (vitamin E) adds further free-radical protection. Sodium Hyaluronate and Panthenol provide hydration support. Niacinamide contributes additional brightening. The formulation concern is the citrus oils: furanocoumarins in Bergamot and Lemon Peel Oil can trigger pigmentation under UV exposure, which directly works against the serum's brightening purpose.
The full INCI list is published on the product page. Ethyl Ascorbic Acid is confirmed at 15%. The brand does not state whether Bergamot Oil is in its bergapten-free (FCF) form - this is a meaningful gap, because without that confirmation consumers cannot know whether the oil has been processed to remove the phototoxic furanocoumarin. No clinical study data has been published for this formula. Ferulic Acid and Tocopherol concentrations are not disclosed.
Pilgrim is PETA-certified cruelty-free and the formula is vegan. The brand does not sell into markets that require mandatory animal testing. The citrus essential oils are natural-origin but they introduce the phototoxicity concern described above - natural origin does not equal safe in every context. No synthetic fragrance compounds are added beyond the citrus oils themselves. Palm derivative sourcing has not been independently verified against RSPO or equivalent standards.
Vitamin C is among the most in-demand serums in India's brightening market, but formulation quality varies enormously. EAA is a better choice for Indian consumers than L-Ascorbic Acid serums because it is stable at higher pH, does not oxidise as rapidly in India's heat and humidity, and does not require the acidic pH that causes stinging on reactive skin. Critical note: apply this serum at night or indoors only. The Bergamot and Lemon Peel Oils introduce phototoxicity risk that significantly counteracts the brightening intent in India's high UV environment. If you use this product, apply SPF 50 every morning without exception.
| Ingredient | Note | Status |
|---|---|---|
Aqua | Solvent base | Safe |
3-O-Ethyl Ascorbic Acid | Ethyl Ascorbic Acid, brand-confirmed at 15%; stable vitamin C derivative, converts to ascorbic acid post-absorption | Safe |
Propanediol | Plant-derived humectant and solvent | Safe |
Glycerin | Humectant | Safe |
Niacinamide | Brightening synergy with vitamin C; note: Niacinamide + L-Ascorbic Acid interaction (niacinamine flush) is not applicable with EAA form | Safe |
Ferulic Acid | Antioxidant, stabilises EAA and provides independent photoprotection signalling | Safe |
Tocopherol | Vitamin E, synergistic antioxidant, lipid-phase free radical quencher | Safe |
Sodium Hyaluronate | HA salt for hydration | Safe |
Citrus Aurantium Bergamia Fruit Oil | Bergamot oil: contains bergapten (furanocoumarin), phototoxic on UV-exposed skin; EU restricts bergapten to 0.0015% in leave-on sun-exposed products; brand does not confirm FCF (bergapten-free) variant | Caution |
Citrus Limon Peel Oil | Lemon peel oil: contains furanocoumarins including limonene and phototoxic compounds; sensitisation and phototoxicity risk in leave-on products without UV avoidance | Caution |
Panthenol | Pro-vitamin B5, barrier restoration and humectant | Safe |
Allantoin | Soothing and repairing | Safe |
Hydroxyethylcellulose | Natural-derived polymer thickener | Safe |
Citric Acid | pH adjuster and mild AHA at final INCI position; used for formula pH calibration, not as a functional exfoliant | Safe |
Phenoxyethanol | Preservative within EU/India 1% limit | Note |
Ethylhexylglycerin | Preservative booster, very low concern | Safe |
Ingredients listed in INCI order as declared on product packaging. Position reflects approximate concentration (high → low).
Clean Sheet Scores are generated by analysing every ingredient against India, EU, US & Korean safety regulations. No brand sponsorship. No affiliate relationships. Independent science-backed analysis only.
The Clean Sheet does not use fear-based ingredient labels. We assess products through a structured evidence hierarchy:
- What global regulations say
- What toxicology says
- What the formula concentration shows
- What the product format changes
- What the intended user needs
- What testing evidence proves
- What the brand is claiming