[Bundle of 2] Simple Hyaluronic Acid & B5 Booster Serum 30Ml + Simple Vit B3 Niacinamide Booster Serum 30Ml (121116733 + 121116734)

SIMPLE

[Bundle of 2] Simple Hyaluronic Acid & B5 Booster Serum 30Ml + Simple Vit B3 Niacinamide Booster Serum 30Ml (121116733 + 121116734)

[Bundle of 2] Simple Hyaluronic Acid & B5 Booster Serum 30Ml + Simple Vit B3 Niacinamide Booster Serum 30Ml (121116733 + 121116734)

SIMPLE

bundle-of-2-simple-hyaluronic-acid-b5-booster-serum-30ml-simple-vit-b3-niacinamide-booster-serum-30ml-121116733-121116734

Serum

10084894703909

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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?

Booster Serum with 23 ingredients

FEATURES

Locks in moisture, softens dry and sensitive skin, dermatologically tested, free from harsh chemicals, alcohol, mineral oils, artificial colours and fragrance

BEST FOR

sensitive

CHECKS

No harsh chemicals, free from alcohol, mineral oils, artificial colours and fragrance

Who Is It For?

What Does It Help With?

Dry And Sensitive Skin Hydration And Softness

Budget

Mid-range ($30-$75)

How To Use

Which routine should it be used in?

Morning
Evening
 
Cleanse
Tone
Eyecare
Serum
Moisturize
Suncare
 

Instructions:

Step 1: Shake bottle well. Step 2: Apply once or twice a day onto cleansed, damp face and neck before or together with your moisturiser. Step 3: For better results, follow with Simple 10% Niacinamide booster serum in the evening.

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:

With 3% Hyaluronic Acid & skin-softening B5, this Simple Booster Serum locks in moisture to make dry skin and sensitive skin instantly softer and more youthful-looking. Simple Booster Serum is dermatologically tested, non-comedogenic, contains no harsh chemicals that can upset your skin and is free from alcohol, mineral oils, artificial colours and fragrance.

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 Distearate, Tapioca Starch, Cetearyl Alcoholo, Sodium Hyaluronate, Dicaprylyl Ether, Caprylyl Glycol, Helianthus Annuus Seed Oil, Sclerotium Gum, Saccharide Isomerate, Phenoxyethanol, Citric Acid, Pantolactone, Polyglyceryl-10 Stearate, Sodium Hydroxide, Sodium Citrate, Tocopherol

Key Ingredients

Hyaluronic Acid, Panthenol (B5), Niacinamide

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

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

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 โ€” 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 โ†’ emolliency type; alcohol chain โ†’ spreading speed and skin feel.

Typically Found In: Cosmetic formulations

TECHNICAL DETAILS

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

Safety documented in cosing at standard formulation concentrations.

Last Verified: Cosing database,coco-caprylate technical review

Primary Sources: 2026-03-22