Formulated with the best-studied and most effective hydroxy acid for remarkable skincare results. With a larger HA size, this serum offers good evidence and minimal irritation, making it suitable for all skin types. Our serum is infused with a polyhydroxy acid, which is larger and even less irritating, ensuring gentle yet effective exfoliation. Note that while this serum is not for use on Rosacea and sensitive skin, it can be used sparingly to unlock the potential of a luminous and revitalised complexion. Experience the transformative power of our TSL 04 Night Serum and wake up to glowing, renewed skin each morning.