
Highlights
WHAT IS IT?
10% Vitamin C+E+F Serum
FEATURES
Provides youthful glowing skin, strengthens skin barrier and moisturisation, non-greasy and non-sticky, penetrates deeply, brightens dull complexion, improves uneven skin tone, anti-aging by reducing age spots, 95% naturally derived, 91% biodegradable, dermatologically tested, hypoallergenic, non-comedogenic
BEST FOR
sensitive
CHECKS
No colour, no perfume, no alcohol, no harsh chemicals, no parabens
Who Is It For?
Men And Women Suitable For Oily Dry And Combination SkinWhat Does It Help With?
Youthful Glowing Skin Brightening Dull Complexion Uneven Skin Tone Age Spots Reduction Moisturisation Strengthening Skin BarrierBudget
Mid-range ($30-$75)How To Use
Which routine should it be used in?
Instructions:
Key Information
What Simple Says
Product Description:
At Simple we’re all about making products which are kind to skin and have skin-loving ingredients. All our products are free from colour, perfume, and a strict list of 2000+ harsh chemicals (we call them baddies). Simple Vitamin C+E+F Booster Face Serum is our most advanced innovation till date which supercharges the skin with triple Vitamin C, E and F. It is potent yet kind to skin and gives instant glow without irritation. The multi-vitamin infusion provides youthful glowing skin, strengthens skin barrier and moisturisation with every use. Its non-greasy and non-sticky formula penetrates deeply into the skin to brighten dull complexion and improve uneven skin tone. Simple Vitamin C+E+F Booster Face Serum with the goodness of Vitamin C also acts as anti-aging product which reduces age spots and helps give spotless skin. It is 95% naturally derived and 91% biodegradable to make sure the face serum is strong yet kind to your skin. Specially designed for sensitive skin users with pH. of 5.5-6.5, it is Dermatologically tested and approved, Hypoallergenic and Non-Comedogenic. This face serum is also suitable for oily, dry and combination skin for both men and women. How to Use - Cleanse your face with a facewash and pat dry. Take a pea sized amount of the Simple Booster Serum in your palm. Spread it between your palms without rubbing too much. Dab the serum all over your face and neck using small and gentle tapping motions. Follow with the Simple Moisturiser. For best results, use daily. With more than 50 years of heritage in caring for the most sensitive skin, Simple, UK's No.1 facial skincare brand, is all about making products which are kind to skin, animals, and planet. We make sure that we respect your skin, always, and that’s why all our products are tested even on the most sensitive skin. Our Products are gentle. Our products are Simple! Simple Vitamin C+E+F Booster Face Serum provides youthful glowing skin, strengthens skin barrier and moisturisation with every use Non-greasy and non-sticky formula which penetrates deeply into the skin to brighten dull complexion and improve uneven skin tone 95% naturally derived and 91% biodegradable to make sure the face serum is strong yet kind Simple Vitamin C+E+F Booster Face Serum with the goodness of Vitamin C also acts as anti-aging by reducing age spots Contains no colour, no perfume, no alcohol, and no harsh chemicals or parabens With pH. of 5.5-6.5 it is Dermatologically approved, Ophthalmologically tested, Hypoallergenic and Non-Comedogenic
About the Brand:
Ingredients Overview
Ingredients List
Aqua, Niacinamide, Propanediol, Caprylic/Capric Triglyceride, Glycerin, Panthenol, Tapioca Starch, Coco-Caprylate, Polyglyceryl-6 Distearate, Dicaprylyl Ether, Caprylyl Glycol, Helianthus Annuus Seed Oil, Sclerotium Gum, Phenoxyethanol, Citric Acid, Polyglyceryl-10 Stearate, Sodium Hydroxide, Pantolactone, Tocopherol
Key Ingredients
Vitamin C,Vitamin E,Vitamin F
Ingredients Details
Caprylic/capric Triglyceride
Common Name(s): Mct oil,fractionated coconut oil,c8/c10 triglyceride
CAS Number: 73398-61-5
DESCRIPTION
What It Does: Lightweight, stable emollient that solubilizes oil-soluble actives for excellent delivery without greasy feel.
Why It's Used: Universal lightweight emollient base and solubilizer for oil-soluble actives in serums and low-viscosity formulations where mineral oil or petrolatum would be too heavy.
How It Works: Medium-chain length provides ideal balance of spreading coefficient, penetration rate, and barrier-sealing properties. excellent solubilizer for vitamin e, retinoids, and other lipophilic actives.
Typically Found In: Serums,facial oils,sunscreens,anti-aging products,hair products
TECHNICAL DETAILS
Primary Category: Active ingredient – medium-chain triglyceride emollient
Secondary Functions: Active solubilizer,spreading agent
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 1%–50%
SOURCING & ETHICS
Vegan Status: Yes – from coconut/palm kernel oil
Halal Status: Yes
Source Notes: Fractionated by hydrolysis and re-esterification of coconut oil. only c8 and c10 fatty acids retained.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 – very low
Comedogenicity Rating: 1/5 – very low; medium-chain length generally non-comedogenic
Sensitivity Concerns: Non-irritating.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. ewg score: 1.
Works Well With: Humectants,ceramides,actives as carrier
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Mct oil's medium-chain length (c8/c10) provides superior oxidative stability vs longer polyunsaturated chains and better skin aesthetics (lighter, less greasy) vs longer chain emollients (c16/c18). excellent solubilizer for retinoic acid, tocopheryl esters, and other lipophilic actives.
Last Verified: Cosing database,cir safety assessment,ewg skin deep
Primary Sources: 2026-03-12
Caprylyl Glycol
Common Name(s): 1,2-octanediol,octanediol,sensiva sc 50
CAS Number: 1117-86-8
DESCRIPTION
What It Does: Provides the most potent antimicrobial diol activity alongside skin feel enhancement.
Why It's Used: Premium antimicrobial diol — caprylyl glycol's c8 chain provides the strongest membrane-disrupting antimicrobial activity of common diol preservative boosters with unique skin-feel enhancement.
How It Works: C8 1,2-diol: c8 chain length provides strongest bacterial and fungal membrane disruption of common diols. emollient skin feel improvement from c8 chain length interaction with skin surface. active at lower concentrations than shorter-chain diols. synergistic with ethylhexylglycerin.
Typically Found In: Natural preservation systems,skin feel enhancement
TECHNICAL DETAILS
Primary Category: Functional ingredient – antimicrobial humectant
Secondary Functions: Skin conditioning
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.1%–1%
SOURCING & ETHICS
Vegan Status: Yes – synthetic
Halal Status: Yes
Source Notes: Commercially produced for cosmetic use. verify vegan/halal status with supplier.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 – very low
Comedogenicity Rating: 0/5 – non-comedogenic
Sensitivity Concerns: Well-tolerated by most skin types.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Good safety profile at recommended concentrations. ewg score: 1–2.
Works Well With: Standard skincare actives
Avoid Combining With: No known significant incompatibilities
SCIENTIFIC NOTE
Caprylyl glycol's antimicrobial potency follows the chain-length dependent membrane activity of fatty acids: c8 is the optimal chain length for membrane disruption (same as caprylic acid's antimicrobial optimum), providing maximum membrane integration without the skin sensitisation associated with longer chain lengths. this chain-length pharmacophore relationship is why c8 > c6 > c5 in diol antimicrobial potency despite identical head group chemistry.
Last Verified: Cosing database,schülke sensiva sc 50 technical data,cir safety assessment
Primary Sources: 2026-03-12
Citric Acid
Common Name(s): Lemon acid,2-hydroxypropane-1,2,3-tricarboxylic acid
CAS Number: 77-92-9
DESCRIPTION
What It Does: Adjusts ph to optimal ranges, chelates destabilizing metal ions, provides mild exfoliation at higher concentrations.
Why It's Used: Universal cosmetic ph adjuster and chelating agent. aha exfoliant activity is secondary.
How It Works: As ph adjuster, donates protons. as chelating agent, three carboxylic groups bind divalent metals (ca²⁺, mg²⁺, fe²⁺) preventing oxidative degradation.
Typically Found In: Nearly all cosmetic formulations,brightening products,exfoliants
TECHNICAL DETAILS
Primary Category: Active ingredient – alpha hydroxy acid (aha)
Secondary Functions: Chelating agent,ph adjustment,preservation enhancement
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.1%–10%
SOURCING & ETHICS
Vegan Status: Yes – synthetic or fermentation-derived
Halal Status: Yes
Source Notes: Produced by fermentation of sugars by aspergillus niger. gras (e330). most abundant organic acid in citrus.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 – very low at low concentrations; 2/5 at exfoliant concentrations
Comedogenicity Rating: 0/5 – non-comedogenic
Sensitivity Concerns: Photosensitizing – mandatory spf use. start at low frequency.
Safe for Sensitive Skin: Use with caution – spf required
SAFETY & COMPATIBILITY
Safety Profile: Safe at otc concentrations. eu: ≤10% leave-on at ph ≥3.5. mandatory spf advisory.
Works Well With: Niacinamide,ceramides,hyaluronic acid,spf
Avoid Combining With: Retinol in same step; multiple exfoliants simultaneously
SCIENTIFIC NOTE
Three carboxylic acid groups provide multiple proton donation sites and stronger chelation than monocarboxylic ahas. this makes citric acid the preferred cosmetic chelating agent alongside edta.
Last Verified: Cosing database,cir safety assessment,ewg skin deep
Primary Sources: 2026-03-12
Coco-caprylate
Common Name(s): Coco-caprylate,coco-caprylate,cosmetic functional ingredient,established active
CAS Number: N/a
DESCRIPTION
What It Does: Provides emollient conditioning with spreading value determined by the ester molecular architecture.
Why It's Used: Coco-caprylate is selected for its c8 caprylic ester — the c-chain length provides ultra-light fast-dry short-chain emolliency, which distinguishes coco-caprylate from esters of adjacent chain lengths in the same polarity tier.
How It Works: Ester: acid chain → emolliency type; alcohol chain → spreading speed and skin feel.
Typically Found In: Cosmetic formulations
TECHNICAL DETAILS
Primary Category: Active ingredient – cosmetic active
Secondary Functions: Skin conditioning
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.1%–10%
SOURCING & ETHICS
Vegan Status: Conditional
Halal Status: Yes
Source Notes: Commercially produced for cosmetic use. verify vegan/halal status with supplier.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 – very low
Comedogenicity Rating: 0/5 – non-comedogenic
Sensitivity Concerns: Well-tolerated by most skin types.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Good safety profile at recommended concentrations. ewg score: 1–2.
Works Well With: Standard skincare actives
Avoid Combining With: No known significant incompatibilities
SCIENTIFIC NOTE
Safety documented in cosing at standard formulation concentrations.
Last Verified: Cosing database,coco-caprylate technical review
Primary Sources: 2026-03-22