ghk-cu typical dose mg per day dosage for injection subcutaneous aka the beauty peptide. I've got the reconstitute and chart at the end reference. GHK-Cu Dosage Chart: 100 mg – GHK-Cu Dosage Calculator and Chart

How long will it take to see visible results on my pigmentation and tan

There was even a theory originally put out in the 1950s called The Free Radical Theory of Aging* which basically held that we age by rusting from within, due largely (but not exclusively) to free radical damage

Comprehensive Skin Improvements The mechanisms produce: Increased Skin Thickness Both epidermis and dermis show measurable thickening, reversing age-related thinning Improved Hydration Enhanced glycosaminoglycan production creates better moisture retention Significant Smoothing Collagen synthesis stimulation reduces wrinkle depth and surface irregularities Increased Elasticity Elastin production enhancement restores youthful bounce and firmness Improved Contrast (Evenness) Reduced hyperpigmentation and more uniform skin tone Enhanced Collagen I Production The primary structural collagen increases substantially Tightened Loose Skin Matrix remodeling restores structural support Barrier Protein Repair Protective skin barrier proteins receive restoration Photodamage Reduction Mottled hyperpigmentation shows correction Photoaging Protection Photoaging protection includes keratinocyte protection from lethal UV-B radiation and blocking UV-induced erythema without increasing UV sensitivity

Nor do fiveor even fiftyloading doses provide long-lasting protection for people with other B12 absorption issues

Central nervous system demyelination associated with immune checkpoint inhibitors: review of the literature

So, which option you choose will depend on what you are trying to achieve with GHK and how much you are willing to go through for it