Our journal

Build a simpler routine for acne-prone skin with gentle cleansing, moisturizing, and sun protection. Learn why oil cleansing, botanical ingredients, and retinoid creams cannot guarantee clear skin or zero irritation.

Learn how cleansing oils remove oil-based residue, how to emulsify and rinse Rothea Cleansing Oil, and why a short ingredient list or certification cannot guarantee zero irritation.

10,000 ppm equals 1% on the same measurement basis. Learn what concentration can tell you, what it cannot prove about purity or tolerability, and how to introduce a bakuchiol moisturizer thoughtfully.