Skincare and pH: Why It Can Make or Break Your Routine
Mix the wrong products and you can quietly cancel out your best serums. Here's how pH works and how to keep your peptides doing their job.
Skincare gets sold as magic ingredients, but it's really chemistry — and one of the quietest ways to waste good products is getting the pH wrong. pH is just a measure of how acidic or alkaline something is, and it decides whether your peptides survive on your skin or fall apart. A little understanding here saves you money.
Why copper peptides are fussy about pH
Copper peptides (GHK-Cu and AHK-Cu) are stable in a near-neutral range that matches your skin — which is why we formulate to a steady 5.5–6.5. Push them into strongly acidic territory and the bond between the peptide and its copper breaks. The peptide stops working, and worse, the loose copper can actually turn into an irritant. That's the opposite of what you're paying for.
The acid conflict
Strong acids — high-strength vitamin C, glycolic acid, salicylic acid — sit at a low pH. Layer them directly over your copper peptides and you neutralise both. If acids are part of your routine, keep them well away from your peptides: separate them by at least 30 minutes, or better, use acids in the morning and your peptides at night.
Don't go too alkaline either
The other extreme causes problems too. Harsh bar soaps and stripping cleansers push your skin's pH up, which can also degrade peptides and leave skin tight. Cleanse with a gentle, pH-balanced wash before your routine so you're starting from neutral ground.
The simple takeaway
Keep acids and copper peptides apart, cleanse gently, and let your peptides work in the environment they're built for. Do that and every drop you apply actually pulls its weight.
