
Highlights
WHAT IS IT?
Blemish Rescue Serum
FEATURES
Oil-free serum, intensive Vitamin B3 concentrate, reduces skin blemishes, acne, enlarged pores, redness and oily skin, forms invisible breathable shield, pollution shield active, dermatologically tested
BEST FOR
oily
CHECKS
Does not contain oil
Who Is It For?
What Does It Help With?
Skin Blemishes Acne Redness Oily Skin Enlarged PoresBudget
Premium ($76-$150)How To Use
Which routine should it be used in?
Instructions:
Key Information
What BOOST LAB Says
Product Description:
This intensive Vitamin B3 concentrate helps deliver clear skin, free from blemishes as skin blemishes and acne, redness and oily skin can be caused by changes in our diets, stress and our environment.
About the Brand:
Ingredients Overview
Ingredients List
Aqua (Water), Niacinamide, Pentylene Glycol, Zinc Pca, Biosaccharide Gum-4, Xanthan Gum, 1,2-Hexanediol, Phenoxyethanol, Ethylhexylglycerin
Key Ingredients
Vitamin B3
Ingredients Details
1-2-hexanediol
Common Name(s): 1-2-hexanediol,cosmetic active,functional ingredient
CAS Number: N/a
DESCRIPTION
What It Does: Delivers characteristic cosmetic function at recommended use concentration.
Why It's Used: Selected for functional contribution and formulation compatibility supported by cosmetic science and regulatory safety data.
How It Works: Works through the mechanism of its molecular class โ physicochemical or biological interaction with skin proteins, lipids, or receptors as documented in peer-reviewed cosmetic literature.
Typically Found In: Skin care 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%โ10%
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: 1โ2.
Works Well With: Standard skincare actives
Avoid Combining With: No known significant incompatibilities
SCIENTIFIC NOTE
1-2-hexanediol has an established safety and efficacy profile within the cosmetic regulatory framework at standard use concentrations.
Last Verified: Cosing database,1-2-hexanediol technical literature
Primary Sources: 2026-03-12
Biosaccharide Gum-4
Common Name(s): Biosaccharide gum-4,biosaccharide gum-4,microbial exopolysaccharide,biotechnology polysaccharide active
CAS Number: N/a
DESCRIPTION
What It Does: Provides moisture retention from the polysaccharide's multiple hydroxyl groups, film-forming conditioning from the polymer chain architecture, and in some grades prebiotic selective fermentation by beneficial skin microbiome organisms.
Why It's Used: Microbial biosaccharides provide pharmaceutical-grade consistency unavailable from plant polysaccharides โ controlled fermentation delivers the same polysaccharide structure and mw distribution every batch for reproducible clinical performance.
How It Works: Microbial eps fermentation in defined bioreactor medium โ specific polysaccharide backbone structure determined by organism's transferase enzymes โ consistent mw distribution (mw/mn < 1.5) โ reproducible rheological and biological properties. the specific polysaccharide structure determines: moisture retention (h-bonding density), film quality (chain flexibility), and prebiotic selectivity (monosaccharide composition).
Typically Found In: Skin care,microbiome formulas
TECHNICAL DETAILS
Primary Category: Active ingredient โ skin microbiome support
Secondary Functions: Microbiome balance,prebiotic effect
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.1%โ5%
SOURCING & ETHICS
Vegan Status: Yes
Halal Status: Yes
Source Notes: Fermentation-derived or plant-extracted.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 โ very low
Comedogenicity Rating: 0/5 โ non-comedogenic
Sensitivity Concerns: Non-irritating; beneficial for sensitive skin.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. ewg score: 1.
Works Well With: Ceramides,niacinamide,soothing actives
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Biosaccharide gum grades are organism-specific โ each biosaccharide gum number designates a specific organism and structure with distinct functional properties. formulators should characterise the specific grade's viscosity, water retention, and prebiotic activity for target application.
Last Verified: Cosing database,biosaccharide gum-4 microbial eps review
Primary Sources: 2026-03-22
Ethylhexylglycerin
Common Name(s): Octylglycerin,2-ethylhexyl glycerol ether,sensiva sc 10
CAS Number: 70445-33-9
DESCRIPTION
What It Does: Provides antimicrobial skin conditioning with deodorant activity and preservation system enhancement.
Why It's Used: Multifunctional clean beauty preservation active โ ethylhexylglycerin provides antimicrobial, deodorant, and skin conditioning in a single ingredient accepted in most natural cosmetic certification schemes.
How It Works: Glycerol ether provides antimicrobial via bacterial membrane phospholipid disruption. deodorant activity via reduction of underarm lipase enzyme activity (similar mechanism to triethyl citrate). skin conditioning from glycerol humectant component. synergistic with phenoxyethanol and diols.
Typically Found In: Natural preservation systems,deodorants,skin conditioning products
TECHNICAL DETAILS
Primary Category: Functional ingredient โ antimicrobial glycerol ether
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%โ0.5%
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: 1โ2.
Works Well With: Standard skincare actives
Avoid Combining With: No known significant incompatibilities
SCIENTIFIC NOTE
Ethylhexylglycerin's deodorant mechanism is pharmacologically identical to triethyl citrate: both inhibit skin surface microbial lipase enzymes that convert odourless triglycerides to odorous free fatty acids. the glycerol ether structure of ethylhexylglycerin, combined with the 2-ethylhexyl chain, provides lipase inhibition similar to ester-based lipase inhibitors from a different chemical class.
Last Verified: Cosing database,schรผlke sensiva sc 10 technical data,cir safety assessment
Primary Sources: 2026-03-12
Niacinamide
Common Name(s): Vitamin b3,nicotinamide,pyridine-3-carboxamide
CAS Number: 98-92-0
DESCRIPTION
What It Does: Niacinamide strengthens the skin barrier, reduces visible pore size, regulates sebum production, fades dark spots, and improves skin texture and tone.
Why It's Used: It is used because it addresses multiple skin concerns at once without irritation, making it suitable for all skin types. it is stable in formulations and pairs well with most other actives.
How It Works: Niacinamide inhibits the transfer of melanosomes (pigment packets) to skin cells, reducing hyperpigmentation. it also stimulates ceramide synthesis to strengthen the skin barrier and reduces inflammation by modulating cytokine activity.
Typically Found In: Serums,moisturizers,toners,cleansers,eye creams,sunscreens,primers
TECHNICAL DETAILS
Primary Category: Active ingredient โ vitamin
Secondary Functions: Barrier repair,brightening,anti-inflammatory
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 2%โ10% (typical: 5%; higher concentrations may cause flushing in some individuals)
SOURCING & ETHICS
Vegan Status: Yes โ synthetically produced
Halal Status: Yes โ synthetic origin
Source Notes: Commercially produced via synthesis from nicotinic acid or 3-cyanopyridine. no animal-derived sources used in cosmetic-grade niacinamide.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 โ very low; concentrations above 10% may cause temporary flushing in sensitive individuals
Comedogenicity Rating: 0/5 โ non-comedogenic
Sensitivity Concerns: At concentrations >10%, some users experience niacin flush (transient redness/tingling). generally very well-tolerated.
Safe for Sensitive Skin: Yes โ one of the best-tolerated actives for sensitive skin
SAFETY & COMPATIBILITY
Safety Profile: Extensively studied and considered very safe. ewg hazard score: 1. no significant systemic toxicity concerns at topical concentrations.
Works Well With: Retinol,peptides,ahas/bhas,hyaluronic acid,ceramides,zinc,vitamin c,spf
Avoid Combining With: High concentrations of vitamin c (ascorbic acid) may theoretically convert to niacin โ use at different times if using pure l-ascorbic acid above 15%
SCIENTIFIC NOTE
Niacinamide is a precursor to nad+ and nadp+, coenzymes vital to cellular energy metabolism. its benefits for dna repair and mitochondrial function make it a key ingredient in anti-aging strategies.
Last Verified: Cosing database,cir safety assessment,ewg skin deep,pubmed clinical studies
Primary Sources: 2026-03-12