In the age of “ingredient-focused skincare,” many people chase “high-concentration products,” believing “more = more effective.” But skincare isn’t about “strength”—it’s about “match” and “absorption.” Let’s debunk 3 common myths.
Myth 1: “10% niacinamide is better than 5%.”
Fact: Niacinamide (vitamin B3) works well at 2%-5% for most people. Concentrations over 8% may cause redness or dryness, especially for beginners. The key is “consistency,” not “high concentration.”
Myth 2: “Pure vitamin C (L-ascorbic acid) must be 20% to work.”
Fact: L-ascorbic acid is effective at 10%-15%. A 20% concentration is more likely to oxidize (turn yellow) and irritate the skin. What matters more is the “pH level” (around 3.5 is ideal for absorption) and “packaging” (opaque, airtight bottles to prevent oxidation).
Myth 3: “The more active ingredients, the better.”
Fact: Mixing 4+ active ingredients (e.g., retinol + vitamin C + salicylic acid) can cause “ingredient conflict.” For example, retinol (acidic) + vitamin C (acidic) doubles the irritation; salicylic acid + niacinamide may disrupt the skin’s pH. Stick to 1-2 active ingredients per routine, and layer them at different times (e.g., vitamin C in the morning, retinol at night).
Skincare is a science, not a “numbers game.” Choose ingredients based on your skin’s needs, not the percentage on the label.
