Simple Booster Serum - 3% Hyaluronic Acid + B5 For Deep Hydration

Simple

Simple Booster Serum - 3% Hyaluronic Acid + B5 For Deep Hydration

Simple Booster Serum - 3% Hyaluronic Acid + B5 For Deep Hydration

Simple

simple-booster-serum-3-hyaluronic-acid-b5-for-deep-hydration

Serum

10084927406373

Morning or Evening?

Morning
Evening
Both

How often will you use this product?

Everyday
Every other day
Every 3 days
Every 4 days
Every 5 days
Every 6 days
Once a week
Twice a week
On specific days
As needed
On rotation

Notes

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Compatibility Score

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Highlights

WHAT IS IT?

Serum with hydration boosting ingredients

FEATURES

3% Hyaluronic Acid, Vitamin B5 for deep hydration, strengthens skin barrier, non-greasy, suitable for sensitive and acne-prone skin

BEST FOR

sensitive

CHECKS

No harsh chemicals, Paraben-Free

Who Is It For?

All Genders No Specific Age Range Mentioned

What Does It Help With?

Hydration Repairing Weak Skin Barrier Soothing Redness And Irritation

Budget

Mid-range ($30-$75)

How To Use

Which routine should it be used in?

Morning
Evening
 
Cleanse
Tone
Eyecare
Serum
Moisturize
Suncare
 

Instructions:

Shake well and apply 2-3 drops onto cleansed face and neck before or together with your moisturiser.

Key Information

Vegan
Cruelty-free
Sensitive-safe
Non-comedogenic
Hypoallergenic
Microbiome-safe
Preservative-free
Eco-friendly
Pregnancy-safe
Oil-free

What Simple Says

Product Description:

Lightweight serum with 3% Hyaluronic Acid and Vitamin B5 providing deep hydration. Hydrates and plumps skin, suitable for sensitive skin. Non-greasy, non-irritating formula that strengthens skin barrier and improves moisture retention.

About the Brand:

SIMPLE has spent over 50 years perfecting the art of gentle skincare, proving that effective doesn't have to mean harsh. Their formulations avoid unnecessary ingredients that can trigger sensitivity while including beneficial actives that actually improve skin health. The brand's expertise in gentle care has made them a trusted choice for people with reactive skin who still want effective skincare results.

Ingredients Overview

Ingredients List

Aqua, panthenol, caprylic/capric triglyceride, glycerin, propanediol, niacinamide, coco-caprylate, polyglyceryl-6 distereate, tapioca starch, cetearyl alcohol, sodium hyaluronate, dicaprylyl ether, caprylyl glycol, Helianthus annuus seed oil, sclerotium gum, saccharide isomerate, phenoxyethanol, citric acid, pantolactone, polyglyceryl-10 stearate, sodium hydroxide, sodium hydroxide, tocopherol

Key Ingredients

hyaluronic-acid,vitamin-b5

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 โ€“ 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%โ€“50%

SOURCING & ETHICS

Vegan Status: Yes โ€“ 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 โ€“ very low

Comedogenicity Rating: 1/5 โ€“ 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 โ€” 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 โ€“ 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%โ€“1%

SOURCING & ETHICS

Vegan Status: Yes โ€“ synthetic

Halal Status: Yes

Source Notes: Commercially produced for cosmetic use. verify vegan/halal status with supplier.

SKIN COMPATIBILITY

Irritancy Rating: 1/5 โ€“ very low

Comedogenicity Rating: 0/5 โ€“ 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: 1โ€“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,schรผlke sensiva sc 50 technical data,cir safety assessment

Primary Sources: 2026-03-12

Cetearyl Alcohol

Common Name(s): Cetostearyl alcohol,c16-18 fatty alcohol

CAS Number: 8005-44-5

DESCRIPTION

What It Does: Provides fatty alcohol emulsification and thickening for stable, well-textured emulsions.

Why It's Used: The most widely used fatty alcohol in cosmetics โ€“ provides emulsification, thickening, and emolliency simultaneously from a single ingredient with excellent safety profile.

How It Works: Forms bilayer lamellar structures in water with emulsifiers creating a viscous structured network that thickens and stabilizes emulsions. fatty alcohol emolliency provides direct skin conditioning. bilayer formation reduces inter-droplet coalescence in emulsions.

Typically Found In: Creams,lotions,conditioners โ€“ virtually all emulsion products

TECHNICAL DETAILS

Primary Category: Functional ingredient โ€“ fatty alcohol emulsifier/thickener

Secondary Functions: Barrier sealing,softening

Application Areas:

Facial Skincare

Body Care

Hair Care

Beard Care

Color Cosmetics (Makeup)

Dietary/Oral Supplements

Typical Concentration Range: 1%โ€“25%

SOURCING & ETHICS

Vegan Status: Yes โ€“ from vegetable or coconut/palm fatty acids

Halal Status: Yes

Source Notes: Plant-derived, synthetic or animal-derived. verify source.

SKIN COMPATIBILITY

Irritancy Rating: 1/5 โ€“ very low

Comedogenicity Rating: 1/5 โ€“ low; formulation-dependent

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

Cetearyl alcohol's ability to form lamellar liquid crystal structures ('krafft phases') with water and co-emulsifiers provides not only emulsion stability but also enhanced skin penetration via the lamellar skin barrier pathway. these crystalline structures can act as a reservoir for active ingredients, slowly releasing them as the lamellar structure melts on skin contact.

Last Verified: Cosing database,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 (caยฒโบ, mgยฒโบ, feยฒโบ) preventing oxidative degradation.

Typically Found In: Nearly all cosmetic formulations,brightening products,exfoliants

TECHNICAL DETAILS

Primary Category: Active ingredient โ€“ 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%โ€“10%

SOURCING & ETHICS

Vegan Status: Yes โ€“ 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 โ€“ very low at low concentrations; 2/5 at exfoliant concentrations

Comedogenicity Rating: 0/5 โ€“ non-comedogenic

Sensitivity Concerns: Photosensitizing โ€“ mandatory spf use. start at low frequency.

Safe for Sensitive Skin: Use with caution โ€“ spf required

SAFETY & COMPATIBILITY

Safety Profile: Safe at otc concentrations. eu: โ‰ค10% leave-on at ph โ‰ฅ3.5. 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