GHK-Cu is the most studied compound here, with a substantial dermatological literature on collagen synthesis and dermal remodelling. It is also the most searched term in this category, and it is frequently combined with other peptides in blended pens.
Melanocortin agonists work on an entirely different axis. Melanotan I is relatively selective for MC1R and therefore for melanogenesis; Melanotan II is non-selective and acts across melanocortin receptor subtypes, which is why its effects extend beyond pigmentation.
Hair loss is a third mechanism again: finasteride inhibits type II 5-alpha-reductase, reducing conversion of testosterone to DHT. It therefore has no effect on compounds that are already 5-alpha reduced or that do not require that conversion, which is a distinction that catches people out.
What to weigh up
GHK-Cu solutions are blue
The copper complex gives a characteristic blue tint. That is expected and is not contamination.
MT1 and MT2 are not interchangeable
MT2 is non-selective, which is precisely why its effects go beyond tanning.
Finasteride only acts on one conversion
It reduces DHT from testosterone. It does nothing to a compound that is already reduced.
Photosensitivity is real
Melanocortin agonists change how skin responds to UV. Existing lesions should be reviewed clinically before use.
Stocked for this goal
Finasterideout of stock
Quanta Pharma 5-Amino-1mqout of stock
Quanta Pharma CJC-1295 (Without DAC)in stock
Quanta Pharma Epitalon 10mgout of stock
Quanta Pharma Ipamorelin 10mgin stock
Quanta Pharma KPV 10mgout of stock
Quanta Pharma Melatoninin stock
Quanta Pharma MT2in stock
Quanta Pharma MT2 10mg - Nasal Sprayin stock
Quanta Pharma NAD+ 500mgin stock
Quanta Pharma Tesamorelin 10mgout of stock
SerenQ Glutathione 1500mg Peptide Penout of stock
SerenQ Ipamorelin + CJC 1295 (No Dac) Peptide Penin stock
SerenQ Ipamorelin 10mg Peptide Penout of stock
SerenQ KLOW Peptide Penout of stock
SerenQ Melanotan-1 15mg Peptide Penout of stock
SerenQ Nad+ 500mg Peptide Penout of stock
SerenQ Tesamorelin 10mg Peptide Penout of stock
Go deeper
This page covers what serves the goal. For what each compound actually is - class, mechanism, half-life and storage - see the reference library.