Multi Peptides + Copper Peptide 1%

Use with caution and always consult your OB-GYN or midwife first. This formula is free of retinoids (including retinol, retinaldehyde, and retinyl esters), salicylic acid, hydroquinone, and chemical sunscreens — the main ingredients to strictly avoid during pregnancy. However, it contains Copper Tripeptide-1 (GHK-Cu) at 1% and Lactococcus Ferment Lysate, both of which lack sufficient human clinical data specifically in pregnant or breastfeeding populations. Topical copper at this concentration is widely considered low-risk, but in the absence of definitive studies, the cautious approach is to check with your healthcare provider. Many pregnancy-safe skincare guides give peptide serums a low-concern rating — but your doctor should always have the final word during this period.

No — this product is NOT considered fungal acne (Malassezia folliculitis) safe. It contains two ingredients that are known to potentially feed Malassezia yeast: Polysorbate 20 (an emulsifier used to solubilize the copper complex) and Lactococcus Ferment Lysate (a fermented ingredient). If you have confirmed Malassezia-driven fungal acne breakouts, you should avoid this formula entirely. A better alternative for peptide benefits without fungal acne risk is The Ordinary Multi-Peptide + HA (without copper), which has a cleaner ingredient list for FA-prone skin — though always double-check its current INCI list as formulas can change. Using an antifungal treatment first to clear active fungal acne before introducing this serum is another approach for those who want the copper peptide benefit.

Not in the same routine — but you can use them on alternate sessions. The Ordinary explicitly recommends avoiding direct acids (AHA/BHA/PHA), direct Vitamin C (ascorbic acid), retinoids (retinol, retinaldehyde, tretinoin), and strong antioxidants in the same application window as Multi-Peptide + Copper Peptides 1%. The reasons are: (1) Copper peptides can be oxidized and deactivated by direct Vitamin C. (2) Low-pH acidic environments (from AHAs/BHAs) may destabilize the peptide complexes and GHK-Cu. (3) Retinoids and strong antioxidants can create unnecessary irritation potential when combined. The solution is simple: use Multi-Peptide + Copper Peptides in your AM routine and your retinoid in your PM routine, or use it on alternate evenings. You can still use both — just not simultaneously in the same step.

This serum is suitable for all skin types, but it performs best for oily, combination, and normal skin due to its fully water-based, lightweight gel-serum texture. It is also excellent for mature skin (30+) of any type seeking comprehensive anti-aging support. Dry skin types will benefit from the dual hyaluronic acid and amino acid hydration system, but should follow with a rich moisturizer or face oil to fully seal in hydration. The one population that should be cautious is those with confirmed Malassezia (fungal acne) — the formula contains Polysorbate 20 and a ferment lysate which are not FA-safe. For very reactive or sensitive skin, patch testing for 48 hours on the inner arm is always recommended before full facial application.

Results unfold in stages over several months. Most users notice improved skin hydration and a subtle healthy glow within the first 1–2 weeks — this is primarily from the HA system and amino acids. Expression-line smoothing from the relaxing peptides (Argireline, SYN-AKE, ARGIRELOX) typically becomes visible around weeks 3–4 with consistent twice-daily use. The deeper anti-aging benefits from Matrixyl 3000, Matrixyl synthe'6, and GHK-Cu — including improved collagen density, skin firmness, and visible wrinkle reduction — require a minimum of 8–12 weeks to show meaningful results, as collagen synthesis is a slow biological process. For the full scope of anti-aging benefits, 3–6 months of consistent use is the realistic timeframe. This is not a quick-fix serum — it is a long-term investment in skin health.

Apply this serum in the "Treat" step — after cleansing and toning (Prep), but before moisturizing and applying SPF (Seal). In a full routine: Cleanser → Toner (optional, avoid acids in the same session) → Multi-Peptide + Copper Peptides 1% → Eye Cream → Moisturizer → SPF (AM only). As a water-based serum, it should go before any oil-based serums, creams, or occlusives. It can be used both morning and evening. In the evening, if you also use retinoids or AHAs/BHAs, apply those on separate nights rather than in the same session to avoid interactions with the copper peptide complex.

No — this serum has a comedogenic rating of 1/5, which is very low. It is fully water-based with zero oils (mineral oil, plant oils, or synthetic lipids), no silicones, and no occlusive waxes. The primary ingredients that carry any comedogenic potential are Polysorbate 20 (a mild emulsifier, rated 0–1) and Glycerin (rated 0). The formula is appropriate for acne-prone and oily skin types. The only caveat is Malassezia-driven fungal acne — this is a different mechanism from traditional pore-clogging acne, and the formula's Polysorbate 20 and ferment lysate make it unsuitable for that specific condition.

The Period After Opening (PAO) is 6 months — shorter than many serums due to the oxidation-sensitive nature of Copper Tripeptide-1 (GHK-Cu). You'll notice that the blue color may lighten slightly over time as the copper complex gradually oxidizes — this is normal and does not necessarily mean the formula has expired. To maximize shelf life and potency: (1) Store in a cool, dry location away from sunlight and heat — avoid humid bathrooms. (2) Screw the cap on tightly after each use to minimize air exposure. (3) Avoid contaminating the dropper by touching it to skin. With twice-daily use, a 30ml bottle typically lasts approximately 2–3 months, meaning the 6-month PAO is easily met with consistent daily use.