GHK-Cu
The renewal serum family
GHK-Cu is a copper peptide studied in skin research. Choose this family if copper peptides are the ingredient you want to explore; check the complete formula and directions on the product page.
Read the GHK-Cu guide →
LONGEVITUS CANADA · SKINCARE
GHK-Cu or SNAP-8? Explore both serum families in Venus for women and Mars for men. Compare the product details, then choose your first bottle.
Explore the serums

START WITH THE INGREDIENT FAMILY
The renewal serum family
GHK-Cu is a copper peptide studied in skin research. Choose this family if copper peptides are the ingredient you want to explore; check the complete formula and directions on the product page.
Read the GHK-Cu guide →The SNAP-8 serum family
SNAP-8 is a peptide ingredient used in cosmetic skincare. Choose this family if that ingredient interests you, and read our explanation of the research before deciding what to expect.
Read the SNAP-8 guide →Ingredient research helps explain the choices. It does not prove the performance of a finished Longevitus formula or establish which serum will work best for your skin.
CHOOSE YOUR COLLECTION
Venus for women. Mars for men. Both ingredient families, in both collections.
A CONSIDERED FIRST CHOICE
Start with one addition you understand, rather than changing your whole routine at once.
Ask about a serum →There is no universal winner. Start with the ingredient you want to explore, check that product's available ingredients and directions, and consider how it fits your routine. Read the GHK-Cu evidence guide and SNAP-8 evidence guide for context. Contact us if information important to your decision is missing.
Venus is our skincare collection for women and Mars is our collection for men. Each has GHK-Cu and SNAP-8 products. Collection names alone do not establish an ingredient difference or a benefit for every person's skin; compare the individual product details and packaging. Our guide to skincare for men and women explains how to think about the choice.
No. You can choose a single serum and introduce it according to its directions. This comparison does not establish that the two formulas should be mixed or layered together. Read our guide to introducing and layering skincare, and follow the instructions for the actual product.
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