+Retinol Vitamin C Moisturizer vs Instant FIRMx Temporary Face Tightener — Ingredient Comparison

Kate Somerville

+Retinol Vitamin C Moisturizer

Moisturizer · 44 ingredients

Step into your most radiant and healthy-looking complexion with Kate Somerville's lightweight and luxe +Retinol Vitamin C Moisturizer. This transformative turnaround cream features a clinical-grade formulation of ageless skin superstars Retinol and Vitamin C to nourish skin all night long.

Peter Thomas Roth

Instant FIRMx Temporary Face Tightener

Moisturizer · 16 ingredients · USA

A quick-fix facial treatment that instantly reduces the look of fine lines, deep wrinkles and pores for a temporary effect that can last all day.

Your fit

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How these two interact

No conflicts — safe to layer

Both are Moisturizer products.

At a glance

Price

$119

$39.20

$79.80 less

Key ingredients

Retinol

A retinoid that speeds cell turnover to smooth texture, soften lines, and clear pores.

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.

Vitamin E

An antioxidant that protects the barrier and supercharges vitamin C.

Glycerin

The workhorse humectant — simple, effective, and exceptionally well-tolerated.

Panthenol (B5)

A barrier-repairing humectant that hydrates and calms — a sensitive-skin staple.

Adenosine

A cell-signaling ingredient that smooths fine lines and supports firmer skin.

PEG-40 Hydrogenated Castor Oil

A nourishing plant oil that softens skin and helps seal in moisture.

Salicylic Acid (BHA)

An oil-soluble acid that gets inside pores to clear congestion and calm breakouts.

AHA

L-Ascorbic Acid

A form of vitamin C — an antioxidant that brightens, fades dark spots, and supports collagen.

Vitamin E

An antioxidant that protects the barrier and supercharges vitamin C.

Glycerin

The workhorse humectant — simple, effective, and exceptionally well-tolerated.

Panthenol (B5)

A barrier-repairing humectant that hydrates and calms — a sensitive-skin staple.

What it targets

Hydration

Barrier

Brightening

Anti-aging

Firmness

Texture

Acne

Pores

Oil control

Soothing