CLAIMS TO:

The Cosrx BHA Blackhead Power Liquid is an essence to exfoliate, brighten, and whiten the skin. It provides a deep cleanse to care the pores within, and clear the skin with whitening effects for a more even skin tone.

MY  OPINION:

• It's a gentle, leave-on exfoliant. It uses beta-hydroxy acids (which are more powerful than alpha-hydroxy acids like glycolic acid and lactic acid).
• Most BHA and salicylic acid products are spot treatments, for applying to individual pimples but this one meant to be used ALL OVER your face, excluding the eye area.
• BHAs are also mildly antibacterial and removing dead skin cells also helps fade age spots and pigmentation.
• So once the BHA reaches your pores, it gives your skin a deep-clean by exfoliating the pore lining and loosening clogged sebum.
• It's an exfoliating, brightening, smoothing, acne-fighting and anti-aging treatment... and it's something I'd recommend for almost everyone.

HOW TO USE:

• Spread a thin layer over your whole face, avoiding the eye area. 
• Wait for the product to fully absorb before layering any hydrators, makeup or sunscreen on top.

• Ideally, you want to give it a good 20 or 30 minutes to get the full benefit.

IMPORTANT NOTE:

• Because of the differences in pH, I suggest using your retinoid at a different time of day
• It's not necessary to use other exfoliants at the same time.
• You actually can use a BHA at the same time as vitamin C, but it's better  to use other time.

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