Papa & Filles · Ingredient education
A peptide skincare routine: face first, scalp separately
A peptide routine can stay simple: a face serum, targeted eye care if you want it, and a moisturizer for the time of day. This is a Papa & Filles product guide, not an independent ranking or a tested combination claim.

Start with the exact peptides
Our Collagen Serum, Eye Cream, Day Cream and Night Cream all list Palmitoyl Tripeptide-1 and Palmitoyl Tetrapeptide-7. Those names are the common thread in this facial collection. They are different ingredients from the copper peptides in our scalp concentrate.
The product name Collagen Serum does not mean collagen appears in the ingredient list. Read the complete list on each facial product page. Our collagen and peptides guide explains why a protein name, a peptide name and a finished-product result answer different questions.
Morning: serum, optional eye care, moisturizer
After cleansing, the Collagen Serum directions call for two to three drops on clean skin, massaged into the face and neck before moisturizer. It is the serum step, not a substitute for every other part of your routine.
If you use Eye Cream, gently pat a small amount around the orbital bone with your ring finger. Let it absorb before concealer or other products. You do not need to apply more because you are already using another product from the peptide family.
Day Cream follows as a lightweight face-and-neck moisturizer. Apply a small amount to clean, dry skin and massage gently. Follow with a separate sunscreen. Day Cream is not a sunscreen, and adding a peptide serum does not create sun protection.
Evening: finish with the texture you prefer
Collagen Serum can also be used in the evening according to its directions. Eye Cream has morning and evening directions. Night Cream is the richer moisturizing option: apply a pea-sized amount to your face and neck after serum has absorbed, as the final evening step.
You do not have to buy all four products to have a peptide routine. Start with the step you actually want to add. Day and Night Cream have different textures and intended routine positions; they are not a requirement to double the number of products you use.
Keep the scalp step separate
Copper Peptide Scalp Concentrate is applied to the scalp, rather than the face or hair lengths. Its directions are 4–6 drops once daily on a dry or towel-dried scalp, gently massaged in and left on. Follow its finished label and stop use if irritation occurs.
Its six featured ingredients are not a complete INCI statement. Check the label or contact us for the full list before purchasing. See how to apply scalp serum for a focused walkthrough.
Add one change at a time
A shared peptide ingredient does not establish that every combination has been tested. Follow the cautions for each formula, especially when introducing other active products. Do not treat this order-of-use guide as a universal compatibility chart or a promise of a particular result.
Keep the routine manageable enough to follow, and evaluate each product on its own directions and your experience. We do not assign a visible-results timeline to this combination. Ingredient research is useful background, not a trial of this exact four-product routine.
Explore the full Peptide Care family, or read Collagen Serum explained before choosing your first face step.
Quick answers
Do I need all four facial peptide products?
No. Choose the routine step and texture you want. Follow each product's directions rather than adding products simply because they share peptide names.
Are the face products copper peptide formulas?
Their complete ingredient lists name Palmitoyl Tripeptide-1 and Palmitoyl Tetrapeptide-7. These are different from the GHK-Cu and AHK-Cu featured in our scalp concentrate.