AVST Moisturiser 4 contains a high concentration of vitamin A alongside antioxidants and peptides. This level supports more advanced skin normalization and refinement while maintaining hydration and barrier function. It’s intended for skin that has built tolerance through the earlier steps of the system.

Used after cleansing and toning, as your daily moisturiser.
Suitable for morning and evening use.

Recommended for skin that is well-adjusted to vitamin A and ready for higher-strength support. Often used when long-term skin maintenance and structure are the priority.

Apply to the face and neck after cleansing and toning.
Use morning and evening.

Higher-strength vitamin A requires commitment to consistent use and daily sun protection to maintain skin balance.