Prescription skincare, examined.Research checked October 7, 2026
FORMULA
REVIEW

Firmness · Product research review

Likeness Rx
Firming Cream reviews

The page names GHK-Cu at 2%. That does not establish ten times the benefit of a 0.2% preparation or identical peptide delivery across bases.

Inside this formula

Brand
Likeness Rx
Product
Firming Cream
Formulation / access
Compounded topical
Published ingredients
Copper peptide (GHK-Cu) 2%; complete base not published
Published price
$195 due for three months; renews at $195
Important detail
The 2% figure belongs to this product, not CoreAge Rx Bounce Back’s 0.2% help-center listing.

Product facts: brand’s official information ↗. Prices are the published offer, not a personal checkout quote.

The formulation question

What the formula can tell you

Peptide identity, concentration and base belong in the comparison, but higher percentages do not automatically mean greater benefit. A topical sirolimus or metformin blend introduces additional questions beyond a cosmetic peptide serum.

Context: AAD pregnancy skincare guidance ↗ · FDA on compounded medicines ↗.

Compounded is a distinct category. This finished preparation is not FDA-approved. Approval or research involving an individual ingredient does not establish approval, safety or effectiveness of this exact blend.

Before starting or switching

Ask the prescriber to review allergies, pregnancy or breastfeeding, other medicines and the exact treatment area. Follow the dispensed label and seek advice for significant irritation.

  • What exact ingredients, strengths and dosage form will I receive?
  • What is the full first charge, quantity, refill schedule and cancellation policy?
  • When should treatment be reassessed, and how do I contact the clinician?

These are questions for a licensed clinician, not instructions to start, stop or change a prescription. Read the product’s complete safety information.

CoreAge Rx is placed first because it is this publication’s promoted recommendation. No head-to-head clinical testing supports a claim that it is better or safer than Likeness Rx Firming Cream.

Sources & review limits

  1. likenessrx.com — Firming Cream product information ↗
  2. fda.gov — FDA compounded-drug risks ↗
  3. aad.org — AAD clinical guidance ↗

We reviewed the public information linked above on October 7, 2026. We did not purchase or use this product, complete its medical consultation, test shipping or verify patient results. Formulas, availability and prices can change.

How we research and compare products ↗

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