The Peter Thomas Roth FIRMx Collagen Serum is a concentrated anti-aging facial serum formulated to visibly firm, lift, and tighten the appearance of skin. Part of the FIRMx collection, this serum is designed to address the look of sagging skin, fine lines, and loss of elasticity, delivering a more youthful, sculpted complexion with continued use.

The serum features hydrolyzed collagen to help support the skin's structural appearance, working alongside peptides and other active ingredients to promote a firmer, smoother skin surface. The lightweight, fast-absorbing formula makes it suitable for daily use as part of a morning or evening skincare routine. It can be applied to the face and neck after cleansing and before moisturizer.

At 1.0 fl oz, this is a concentrated treatment size ideal for targeted anti-aging care. Peter Thomas Roth is a professional-grade skincare brand known for high-potency formulations backed by clinical-inspired ingredients.