You can't 🫣 sorry.. making a 1% with 100mg lyophilized ghkcu would mean 10ml of usable serum. Adding it to aveeno cream it's literally not doing anything
If you're using aveeno cream you'll want to dilute it as w/v like 1g ghkcu/99ml aveeno. Creams are heavy so if you do w/w you'll be doing 1g ghkcu/10g aveeno cuz it's much denser