This is by design, and reflects the necessity of clinical trials to assess clinical impact for a specific therapeutic and indication
Its about offering an experience that connects medical consultation, follow-up care, and lifestyle management
The Fitzpatrick Skin Type Chart below can help you determine your current skin type and establish realistic expectations

Common reasons Not getting any UV exposureMT-2 produces melanin but you need some UV to 'activate' it and see the tan Degraded peptide from improper storagecheck if solution is clear and properly refrigerated Dose too lowsome people need the full 500mcg to see results Unrealistic expectationsMT-2 won't make you darker than your genetic potential allows Not enough timefull results take 2-4 weeks of consistent loading Poor quality peptide from unreliable sourcealways verify with third-party testing (COA) Key Research [1]"Evaluation of melanotan-II, a superpotent cyclic melanotropic peptide, in a pilot phase-I clinical study" Dorr RT, Lines R, Levine N, Brooks C, Xiang L, Hruby VJ, Hadley ME, 1996 Finding: Pilot phase-I human study: subcutaneous melanotan-II induced measurable skin tanning in healthy male volunteers after only 5 low doses (every other day), with pigmentation increasing in the face, upper body and buttocks
Ahmed H et al