
Kiehl's Since 1851
Powerful-Strength Line-Reducing Concentrate
Serum · 21 ingredients · USA
The Powerful-Strength Line-Reducing Concentrate is a potent vitamin C serum by Kiehl's Since 1851 that is formulated with 12.5% vitamin C and hyaluronic acid.

Kate Somerville
KateCeuticals Firming Serum
Serum · 46 ingredients
Put dull skin in your rearview with Kate Somerville's clinic-grade KateCeuticals Firming Serum. You'll see smoother texture and improved skin firmness within 2 weeks. The Tri-Peptide + Hyaluronic Acid Complex softens the appearance of fine lines and visibly minimizes even the deepest wrinkles.
Set your skin profile to see how these suit you
Set your skin profileCaution — space these apart
Stacked low-pH irritation
Stacked low-pH irritation
Use on separate days
Barrier support
Antioxidant duo
L-Ascorbic Acid
A form of vitamin C — an antioxidant that brightens, fades dark spots, and supports collagen.
Hyaluronic Acid
Holds water in the skin for instant plumping and hydration.
Glycerin
The workhorse humectant — simple, effective, and exceptionally well-tolerated.
Adenosine
A cell-signaling ingredient that smooths fine lines and supports firmer skin.
Citrus Aurantium Dulcis (Orange) Peel Oil
A nourishing plant oil that softens skin and helps seal in moisture.
Citrus Limon Peel Oil/Lemon Peel Oil
A nourishing plant oil that softens skin and helps seal in moisture.
Hyaluronic Acid
Holds water in the skin for instant plumping and hydration.
Ceramides
Barrier lipids that seal in moisture and repair a compromised skin barrier.
Peptides
Amino-acid messengers that signal collagen production for firmer, smoother skin.
Vitamin E
An antioxidant that protects the barrier and supercharges vitamin C.
Glycerin
The workhorse humectant — simple, effective, and exceptionally well-tolerated.
Adenosine
A cell-signaling ingredient that smooths fine lines and supports firmer skin.
Citrus Aurantifolia (Lime) Oil
A nourishing plant oil that softens skin and helps seal in moisture.
Citrus Aurantium Dulcis (Orange) Peel Oil
A nourishing plant oil that softens skin and helps seal in moisture.
Citrus Paradisi (Grapefruit) Peel Oil
A nourishing plant oil that softens skin and helps seal in moisture.
Mentha Piperita (Peppermint) Oil
A nourishing plant oil that softens skin and helps seal in moisture.
Zingiber Officinale (Ginger) Root Oil
A nourishing plant oil that softens skin and helps seal in moisture.
Citrus Aurantium Bergamia (Bergamot) Fruit Oil
A nourishing plant oil that softens skin and helps seal in moisture.
AHA
Hydration
Barrier
Brightening
Anti-aging
Firmness
Antioxidant
Hydration
Barrier
Anti-aging
Firmness
Antioxidant
Healing