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Knock Out

Bubble Skincare

Knock Out

Knock Out

Bubble Skincare

knock-out

Serum

9873690886437

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Highlights

WHAT IS IT?

Treatment serum with 1.8% Salicylic Acid

FEATURES

Deeply cleanses pores, relieves whiteheads and blackheads, clarifies and purifies oily skin, gently exfoliates

BEST FOR

oily

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Who Is It For?

Individuals With Breakout-prone Skin

What Does It Help With?

Breakouts Whiteheads Blackheads Oily Skin

Budget

Affordable (under $30)

How To Use

Which routine should it be used in?

Morning
Evening
 
Cleanse
Tone
Eyecare
Serum
Moisturize
Suncare
 

Instructions:

Key Information

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

What Bubble Skincare Says

Product Description:

Your blemishes don't stand a chance. Knock Out springs into action with a one-two punch of 1.8% Salicylic Acid and Wintergreen Extract. This science + nature duo brings breakout prone skin back to balance. Salicylic Acid deeply cleanses pores of oil, dead skin, and breakout-causing culprits to quickly relieve whiteheads, blackheads, and occasional breakouts. Wintergreen Extract helps clarify and purify oily skin, while Willow Bark Extract gently exfoliates. Last, but not least, Sambucus Nigra Fruit Juice helps calm any irritation for happy, healthy skin.

About the Brand:

Hello Bubble brings fun and functionality to Korean skincare routines. With its charming packaging and effective formulations, this brand makes skincare an enjoyable daily ritual. Experience the joy of K-beauty with Hello Bubble's delightfully effective approach to skin health.

Ingredients Overview

Ingredients List

Salicylic-Acid, Wintergreen-Extract, Willow-Bark-Extract, Sambucus-Nigra-Fruit-Juice

Key Ingredients

Salicylic Acid, Wintergreen Extract, Willow Bark Extract, Sambucus Nigra Fruit Juice

Ingredients Details

Salicylic Acid

Common Name(s): Bha,2-hydroxybenzoic acid,orthohydroxybenzoic acid,willow bark acid

CAS Number: 69-72-7

DESCRIPTION

What It Does: Salicylic acid exfoliates the skin surface and inside pores, dissolves the 'glue' holding dead skin cells together, reduces sebum production, and combats acne-causing bacteria.

Why It's Used: Its oil solubility makes it uniquely effective at penetrating pores and dissolving sebum plugs โ€“ a function that water-soluble ahas cannot perform. it is the preferred exfoliant for oily, acne-prone, and congested skin.

How It Works: Salicylic acid disrupts desmosomal bonds between corneocytes, promoting exfoliation. its oil solubility allows it to penetrate the sebaceous follicle, dissolving sebum and dead cells. it also has anti-inflammatory properties by inhibiting prostaglandin synthesis.

Typically Found In: Cleansers,toners,serums,spot treatments,masks,chemical peels,anti-dandruff shampoos,acne treatments

TECHNICAL DETAILS

Primary Category: Active ingredient โ€“ beta hydroxy acid (bha)

Secondary Functions: Anti-acne,anti-dandruff,keratolytic

Application Areas:

Facial Skincare

Body Care

Hair Care

Beard Care

Color Cosmetics (Makeup)

Dietary/Oral Supplements

Typical Concentration Range: 0.5%โ€“2% (otc acne treatment in us); up to 30% in professional chemical peels

SOURCING & ETHICS

Vegan Status: Yes โ€“ synthetic or willow bark derived

Halal Status: Yes

Source Notes: Naturally occurring in willow bark (salix alba) and wintergreen oil. commercially produced synthetically via kolbe-schmitt reaction for cosmetic use.

SKIN COMPATIBILITY

Irritancy Rating: 3/5 โ€“ moderate; can cause dryness, peeling, and irritation, especially at higher concentrations

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

Sensitivity Concerns: Can cause irritation, dryness, and sun sensitivity. avoid contact with eyes. not recommended during pregnancy at high concentrations. can be drying โ€“ follow with moisturizer.

Safe for Sensitive Skin: Use with caution โ€“ start with lower concentrations and frequency; may not be suitable for reactive or rosacea-prone skin

SAFETY & COMPATIBILITY

Safety Profile: Safe at otc concentrations (0.5โ€“2%). regulated as a drug in some countries (us: fda category i acne treatment). avoid in pregnancy at high concentrations.

Works Well With: Niacinamide,zinc,tea tree oil,benzoyl peroxide (at different times),hyaluronic acid (to counteract dryness)

Avoid Combining With: High concentrations of retinol (cumulative irritation),multiple exfoliating acids simultaneously,benzoyl peroxide in same step (can increase irritation)

SCIENTIFIC NOTE

Salicylic acid is a member of the salicylate family and shares structural similarity with aspirin. its anti-inflammatory mechanism mirrors aspirin's cox inhibition pathway, making it uniquely effective for inflammatory acne.

Last Verified: Cosing database,cir safety assessment,us fda acne monograph,journal of the american academy of dermatology

Primary Sources: 2026-03-12