Cosrx BHA Blackhead Power Liquid, 100ml

Product Overview

• Name: COSRX BHA Blackhead Power Liquid

• Size: 100 ml / 3.38 fl. oz 

• Type: Chemical exfoliating liquid (toner / essence style) 

• Skin concerns targeted: Blackheads, clogged pores, excess oil, uneven texture, post‑blemish marks 

• Suitable for: Oily, combination, acne‑prone skin (for those experienced with acids) 

Key Ingredients & Their Functions

The ingredient list is relatively short and minimal, which reduces potential irritants. 

Benefits & What It Does

• Clears clogged pores and reduces blackheads 

• Helps prevent breakouts and fade marks left by acne 

• Helps balance oil production, so excess shine is reduced

• Improves skin texture, making it smoother and more even 

How to Use

1. Cleanse your face first (morning or night).

2. After cleansing (and optionally after a hydrating toner), apply this power liquid. You can use a cotton pad (gently swipe) or pat lightly with fingers. 

3. If you are using it as a “toner step,” wait until it is fully absorbed before layering on other products. 

4. Frequency: Start with 2–3 times per week, then gradually build up as your skin tolerates it. 

5. On days you use it in the morning, always apply a broad‑spectrum sunscreen (SPF) afterward, since your skin becomes more sensitive to UV. 

Precautions, Warnings & Considerations

• Because it’s an acid (BHA), irritation, tingling, or redness may occur especially for new users. Start slowly. 

• Do not layer with other strong acids (AHAs, retinoids, Vitamin C) on the same night unless your skin is very tolerant. 

• If pregnant or breastfeeding, many guidelines advise avoiding BHA / salicylic acid products—consult a dermatologist. 

• Always patch‑test before full use (behind ear or jawline) to check for reactions.

• If irritation persists or worsens, discontinue use and seek dermatological advice.

• Be mindful of the possibility of “purging” (temporary worsening) when first starting acid exfoliants. Also, individual skin reactions vary—some users report breakouts when using the product. 

Real‑User Notes & Observations

From user reports online:

• Many users praise its ability to clear blackheads and improve skin texture over weeks. 

• Some users reported breakouts or irritation, especially early in use, potentially due to purging or sensitivity to niacinamide or other ingredients. A few noted that their pores seemed more visible (at least initially) after usage, perhaps as the product draws out congestion. 

• Some confusion over packaging—e.g. whether bottles without “Blackhead” in the name are fake or rebranded.

So while many experiences are positive, results and tolerance can differ.