Peter Thomas Roth | Firmx Collagen Serum Face Serum With Collagen | Collagen Serum, Firming Face Serum, 1 Oz Go 4 Hustle (black luster)

Hustle (black luster)

avoids unnecessary ingredients and supports a stronger skin-barrier with a balanced skin-neutral pH

back box pleat and a cotton blend that gets better with every wear

healthy-looking skin that feels comfortable all day

more even-toned under-eye area

Peter Thomas Roth | Firmx Collagen Serum Face Serum With Collagen | Collagen Serum, Firming Face Serum, 1 Oz Go 4 Hustle (black luster)Peter Thomas Roth Firmx Collagen Serum is a potent formula designed to boost skin's natural collagen production, helping to firm and tighten the complexion. This 1 oz serum penetrates deeply to improve elasticity and reduce the appearance of fine lines, providing a smoother, more youthful skin texture. Ideal for those seeking expert level collagen support, it enhances skin resilience and promotes a visibly lifted look with regular use.