SOME BY MI AHA-BHA-PHA 30 Days Miracle Acne Clear Foam: The Cult-Favorite Acid Foaming Cleanser

SOME BY MI's 30 Days Miracle line is one of the best-known acne-focused ranges in Korean skincare, and this foaming cleanser is the cleansing step in that system. The formulation combines three complementary acids: glycolic acid (AHA) for surface exfoliation, salicylic acid (BHA) for pore-deep clearing, and lactobionic acid (PHA) for gentler daily-use chemical exfoliation. Most acid cleansers pick one or two; SOME BY MI runs all three at low daily-safe concentrations.

At $26.61 for 100ml, this sits in the mid-accessible zone. The product's cult following in Korean acne communities is earned: users report clearer skin, faded post-acne marks, and smoother texture within the titular 30-day window. That said, acid cleansers have an inherent design limitation: the contact time with skin is short (30 to 60 seconds), so they supplement rather than replace a dedicated acid serum or toner. This is a cleanser that does useful acid work while cleansing, not a treatment.

What It Does

The triple acid blend breaks down surface dead skin, dissolves pore-clogging sebum, and reduces the bacterial load that drives comedonal acne. Tea tree extract adds antimicrobial support. Over 30 days of twice-daily use, users typically see: reduced blackheads, fewer small comedones, gradual fading of post-inflammatory hyperpigmentation, and smoother overall texture. Deep cystic acne is not the target; this works best on surface and comedonal acne types.

Who It's For

• Comedonal acne (blackheads, small bumps): BHA component targets this specifically.
• Post-acne marks (PIH): AHA surface turnover fades marks over weeks.
• Oily, congestion-prone skin: Acid blend controls sebum buildup.
• Combination skin with T-zone issues: Can be used 1x daily on full face, 2x on T-zone only.
• Texture-focused users: Smooths bumpy skin over 3 to 4 weeks.

Key Specs

• Volume: 100ml
• Price: $26.61
• Hero actives: glycolic acid, salicylic acid, lactobionic acid, tea tree extract
• Texture: foaming gel, creamy lather
• Fragrance: mild, tea tree-adjacent
• pH: approximately 5.5, skin-matched

How to Use

Dispense a small amount onto wet palms, lather, and massage onto damp skin for 30 to 60 seconds. Do not leave on longer; acid cleansers don't benefit from extended contact time (the acids need time to work but the surfactants will over-strip). Rinse thoroughly with lukewarm water. Use AM and PM for acne-focused treatment, or PM-only for maintenance. Follow with non-acid toner and moisturizer.

For first-time acid users: start with PM-only for 1 week to check tolerance. Some stinging on first use is normal; persistent burning or peeling means reduce frequency. Always pair with SPF in the morning; exfoliating acids increase sun sensitivity.

FAQ

Is this good for cystic acne?

Not directly. Cystic acne requires anti-inflammatory and bacterial intervention deeper than a cleanser can reach. Use this as supporting skincare while you work with a dermatologist on prescription treatment (tretinoin, benzoyl peroxide, antibiotics, or Accutane as indicated). For surface and comedonal acne: this is effective.

Will it make my skin purge?

Possible in the first 1 to 2 weeks. Purging happens when exfoliants accelerate the surfacing of existing congestion. True purging: breakouts appear in your usual acne zones and resolve within 2 to 4 weeks. If breakouts appear in new areas or persist beyond 4 weeks, it may be irritation rather than purging.

SOME BY MI foam vs Paula's Choice 2% BHA?

Different products. Paula's Choice is a leave-on BHA liquid with much more contact time. SOME BY MI is a rinse-off cleanser with shorter contact. Paula's Choice delivers stronger BHA action; SOME BY MI is more daily-wearable. Best combined: SOME BY MI as cleanser, Paula's Choice as toner for layered acid treatment.

Can I use this with retinol?

Yes, with timing. Cleanse AM with SOME BY MI, skip in PM if using retinol (rinse with a gentle cleanser instead). Back-to-back acids and retinol over-exfoliate the barrier. Alternate days work well for sensitive skin.

Does it dry out the skin?

Some drying is expected with acid cleansers. Follow with hydrating toner and moisturizer. If drying is severe after 2 weeks of use, reduce to once daily or alternate days. Acid cleansers work best when paired with a hydration-focused rest of routine.

Related Products

Pair with SOME BY MI Miracle AC Clear Spot Treatment for active breakouts, or Anua Heartleaf Centella Red Spot Cream for post-acne calming.

Browse the full SOME BY MI collection or related: Korean acne care.