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TruSkin
TruSkin Vitamin C Serum
A budget-accessible vitamin C serum — worth checking the ingredient list for stabilizers like ferulic acid, since pure L-ascorbic acid degrades quickly once opened.
Uses betaine salicylate, a gentler salicylic acid derivative popular in K-beauty formulations, offering similar pore-clearing action with less potential irritation.
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Best for
Best for those with blackheads and congested pores who want BHA benefits with a gentler ingredient profile than pure salicylic acid.
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Key Ingredients
Betaine SalicylateWillow Bark WaterButylene Glycol
What We Like
- Contains Betaine Salicylate for a gentler, gradual-release bha derivative; Willow Bark Water for supplementary natural salicin source
- Affordable price point — accessible for most budgets
- Backed by research-supported active ingredients
Things to Consider
- Simpler formulation compared to premium alternatives
- Results require consistent use over several weeks
Our Verdict
COSRX BHA Blackhead Power Liquid is an affordable option from COSRX that delivers solid value for those with blackheads and congested pores who want BHA benefits with a gentler ingredient profile than pure salicylic acid. The inclusion of Betaine Salicylate provides a gentler, gradual-release bha derivative. Best suited for those with blackheads and congested pores who want BHA benefits with a gentler ingredient profile than pure salicylic acid.
Interested in COSRX BHA Blackhead Power Liquid?
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Based on a Duke University patent combining 15% L-ascorbic acid with vitamin E and ferulic acid at a specific pH — widely cited as the benchmark formulation in vitamin C research.
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