DOT & KEYSerums

10% Vitamin C + E & Hyaluronic Acid Face Serum

A clean, purposeful formula let down by the inclusion of DGME without consumer disclosure. Removing DGME or transparently communicating its role would significantly improve this score.

10% Vitamin C + E & Hyaluronic Acid Face Serum
82
Good
Best for
  • Sensitive skin types
  • Dull or uneven skin tone
Avoid if
  • You are using prescription actives alongside

₹449-₹799 • Analysed 11 June 2026

India Context

A Vitamin C serum is a highly relevant product for India, UV-induced hyperpigmentation and post-acne marks are among the most common skin concerns. Ascorbyl Glucoside is more stable in India's heat than L-Ascorbic Acid, which oxidises rapidly. The DGME concern is worth monitoring as EU safety data matures.

This is a web evidence review, not a Clean Sheet certification. We checked the ingredient list, publicly available test reports, marketing claims, and formula logic using only public information available at the time of review.

At a glance

Fragrance free
Alcohol free
Paraben free

What was checked

Each claim checked against publicly available evidence: published test reports, the ingredient list, and regulatory data.

10% Vitamin CVerified

Brand confirms 10% Ascorbyl Glucoside. This is a stable derivative, not L-Ascorbic Acid - a potency distinction not disclosed in the product name.

Published evidence
Vitamin C + E antioxidant synergyVerified

Well-established published evidence for Vitamin C and E working synergistically as antioxidants.

Published evidence
DGME safety for consumersNot found

DGME is a penetration enhancer under EU review. Its effect on co-formulated ingredient absorption is not communicated to consumers.

Not found
Verified: confirmed from public evidenceSupported: consistent with available evidenceNeeds context: relevant for some usersNot verified: could not be confirmed

Score breakdown

Mostly credible with gaps

Public Evidence Score across 5 pillars. Open any row for the full rationale.

Ingredient Safety
Strong24/30

Clean allergen profile with a fragrance free formula.

Diethylene Glycol Monoethyl Ether (DGME) is present in this formula. It is classified as a skin penetration enhancer and is currently under ongoing safety review in Europe. It is permitted in both India and the EU at present levels, but the concern is that DGME increases the amount of every other ingredient in the formula that absorbs through the skin - effectively raising the body's exposure to all actives in the serum. No fragrance, no azo dyes, no restricted UV filters. The rest of the formula is clean.

Formula Logic
Strong21/25

The brand states 10% Ascorbyl Glucoside, and the Vitamin C plus Vitamin E combination is well-established in antioxidant research.

The brand states 10% Ascorbyl Glucoside, and the Vitamin C plus Vitamin E combination is well-established in antioxidant research. Sodium Hyaluronate adds hydration. Ascorbyl Glucoside is a gentler, more stable form of Vitamin C than L-Ascorbic Acid - an advantage in India's heat but with lower potency. DGME enhances ingredient penetration, which may boost efficacy but also increases systemic absorption of co-formulated ingredients.

Claims Evidence
Strong20/25

Good evidence for stated claims based on public information.

The brand states 10% Vitamin C on the product, which is a welcome transparency. The full ingredient list is published on dotandkey.com and DGME is listed within it. However, the penetration-enhancing properties of DGME are not explained to consumers. The product name implies L-Ascorbic Acid to most consumers, but the actual form used is Ascorbyl Glucoside - a distinction that matters for anyone comparing efficacy against other Vitamin C serums.

Test Transparency
Grade BStrong12/15

No product-specific clinical study published.

No product-specific clinical study published. The Vitamin C + E synergy has strong ingredient-level evidence in published literature. The DGME element lacks consumer-facing transparency. Grade B reflects the strong ingredient science with the DGME opacity as a gap.

Consumer Clarity
Excellent5/5

Full INCI list published.

Full INCI list published. Concentration disclosed proactively. DGME's penetration-enhancing function is not communicated but it is listed in the INCI, allowing informed consumers to investigate. Scored at max given overall disclosure level.

Ingredient list

10 ingredients · INCI order

SafeNoteCaution
Ingredient
Aqua (Water)
Ascorbyl Glucoside
Glycerin
Butylene Glycol
Tocopherol
Sodium Hyaluronate
Diethylene Glycol Monoethyl Ether (DGME)
Allantoin
Show all 10 ingredients
Phenoxyethanol
Ethylhexylglycerin

INCI order as declared on packaging. Position reflects approximate concentration (high to low).

Regulatory screen

Each ingredient mapped against 10 global regulatory authorities

EU 1223/2009EU Cosmetics Regulation - Annexes II–VI

DGME (Diethylene Glycol Monoethyl Ether) - penetration enhancer under ongoing EU safety review (SCCS); currently permitted

India CR 2020India Cosmetics Rules, CDSCO

No flagged substances

Health Canada HotlistCanada prohibited & restricted ingredients

No flagged substances

US FDA 21 CFRUS FDA Parts 700–740

No flagged substances

MFDS KoreaKorea Cosmetics Act

No flagged substances

ECHA SVHCSubstances of Very High Concern

No flagged substances

IARCCarcinogen classifications Groups 1/2A/2B

No flagged substances

AICIS AustraliaAustralian industrial chemical safety

No flagged substances

TGA AustraliaTherapeutic claims (if applicable)

No flagged substances

Canada NHPIDNatural health product ingredients

No flagged substances

Flags are based on publicly available INCI only. Not a substitute for full regulatory compliance review.

Claims check

Each marketing claim assessed against publicly available evidence

10% Vitamin CPublicly supported

Brand confirms 10% Ascorbyl Glucoside. This is a stable derivative, not L-Ascorbic Acid - a potency distinction not disclosed in the product name.

Evidence visible

Vitamin C + E antioxidant synergyPublicly supported

Well-established published evidence for Vitamin C and E working synergistically as antioxidants.

Evidence visible

DGME safety for consumersNot publicly supported

DGME is a penetration enhancer under EU review. Its effect on co-formulated ingredient absorption is not communicated to consumers.

Missing

What would improve this score

Public evidence the brand could provide to close verification gaps

  • Consumer disclosure of DGME's penetration-enhancing properties
  • Clarification that Vitamin C form is Ascorbyl Glucoside, not L-Ascorbic Acid
About this review

A clean, purposeful formula let down by the inclusion of DGME without consumer disclosure. Removing DGME or transparently communicating its role would significantly improve this score.

Independent reviewPublic evidence only
Full methodology
  • What global regulations say about each ingredient
  • What toxicology evidence shows at cosmetic concentrations
  • What formula concentration context changes
  • What the product format and leave-on contact time changes
  • What the stated user group needs
  • What published test evidence confirms
  • What the brand is claiming vs what evidence supports

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