T-01
Copper peptide application-quantity guide
Fingertip-unit arithmetic for cream-format copper peptide products: FTUs per area, grams per application, per day and per week, and how long a 30 g or 50 g jar lasts at your frequency. Education about quantity, never an efficacy or dosing claim.
Fingertip-unit arithmetic for cream-format copper peptide products: FTUs per area, grams per application, per day and per week, and how long a 30 g or 50 g jar lasts at your frequency. Education about quantity, never an efficacy or dosing claim.
Cosmetics carry no label frequency. The tool defaults to once daily, accepts 1 to 4, and labels every output as quantity arithmetic, not a regimen.
Quantity plan
Select at least one body area to size the application.
Worked example
Worked example: a face-and-neck evening routine
Area: face and neck = 2.5 FTU per the defining study [clm-085]. Grams per application: 2.5 FTU x 0.5 g/FTU = 1.25 g [clm-086]. Frequency: once daily (no label exists; this is user-chosen, not a regimen) [clm-087]. Weekly use: 1.25 g x 7 = 8.75 g. A 50 g jar lasts 50 / 1.25 = 40 days at this pattern.
Frequently asked questions
Why is there no injectable dosing calculator?
Because there is nothing honest to compute. Injectable GHK-Cu has no human trials, no human pharmacokinetics and no established dose, and FDA lists it for safety concerns. A calculator would convert guesses into confident-looking numbers, so we ship the refusal instead.
Does the quantity guide work for dropper serums?
No, and it says so when you pick serum format. Fingertip units were defined for cream and ointment expressed from a nozzle; no published convention maps drops of a serum to grams, and we do not invent one.
Does applying more copper peptide work better?
No study has tested any quantity-response relationship for cosmetic copper peptide products. The guide computes what a routine consumes, not what it achieves.
Where do the FTU numbers come from?
From the defining 1991 fingertip-unit study (face and neck 2.5 FTU; one hand 1.2 FTU; one FTU covers about 286 cm2) and the 1992 rule of hand (4 hand areas = 2 FTU = 1 g).
Tools: educational calculators and references only.