Overall mean compliance in the L-Carnitine-combination group was 97.4%, the L-Carnitine group was 99.2%, and the placebo group was 97.2%
The combination of higher HR, lower HRV, and reduced activity may reflect changes in recovery capacity, which could plausibly contribute to reduced physical activity levels
The data on this is limited for retatrutide since it is newer, but the general pattern with GLP-1 agonists suggests that maintaining weight loss after stopping requires lifestyle modifications regardless of which compound you used

The pharmacological profile of GHK-Cu observed in preclinical models covers a broad spectrum of activity: Stimulation of extracellular matrix synthesis influence on the production of collagen, elastin and glycosaminoglycans in dermal fibroblasts Pro-regenerative and pro-angiogenic effects in in vivo and in vitro wound healing models Modulation of gene expression in transcriptomic studies, the impact on hundreds of tissue repair and antioxidant defense genes Transport of copper ions GHK as a physiological carrier of Cu, a cofactor of matrix enzymes Antioxidant and anti-inflammatory activity reduction of oxidative stress markers in cell models GHK-Cu is a model ligand for testing in the group of plasma peptides connective tissue remodeling and copper biology combines a signaling function with trace element transport, making it a tool for studying the interface between copper metabolism and extracellular matrix repair

Thats a conversation to have with your rheumatologist , tracked with objective disease activity scores never a do-it-yourself taper
Various versions of the test have used different methods to measure the amount of B12 absorbed