COS DE BHA [AZ15] Azeliac Acid MSM Serum 30ml

COS DE BHA [AZ15] Azelaic Acid MSM Serum is a targeted treatment formulated to address hyperpigmentation, rosacea, and post-inflammatory erythema. This lightweight serum combines azelaic acid with MSM (methylsulfonylmethane) to deliver dual-action benefits: azelaic acid works to normalize skin tone and reduce bacterial overgrowth, while MSM supports collagen synthesis and skin barrier integrity. The 30ml format provides a concentrated dose suitable for daily application to problem areas or as part of a comprehensive skincare routine. Azelaic acid is particularly effective for those with sensitive or reactive skin, offering anti-inflammatory and antimicrobial properties without the irritation profile of stronger actives. MSM enhances penetration and amplifies the serum's soothing effects, making it ideal for compromised or inflamed skin. Best used morning and evening after cleansing and toning. Apply a small amount to affected areas and allow to absorb before layering additional products. This serum pairs well with gentle moisturizers and SPF during daytime use. Suitable for all skin types, especially those prone to sensitivity, rosacea, or uneven skin tone. Key benefits include visible reduction in redness and hyperpigmentation over 4–8 weeks of consistent use, improved skin texture, and enhanced radiance. The formula is designed to strengthen the skin barrier while delivering potent actives, making it a versatile addition to both treatment and maintenance routines.