l-carnitine studies l-carnitine: Nutrition, pathology, and health benefits The effects of L-carnitine supplementation

It is discussed in the literature for helping shift melanogenesis toward lighter pigment pathways while reducing oxidative damage that may contribute to uneven tone

Microorganisms 12:12030580

Patel says

Vitamin B12 often gets special attention with a higher dose to combat fatigue

While CJC-1295 does not raise testosterone directly, many men report benefits that overlap with testosterone optimization: Stronger libido and sexual function Increased morning energy and reduced afternoon crashes Better mood stability and reduced irritability Improved athletic performance and workout capacity Faster recovery after exercise and injury Deeper, more restful sleep Easier fat loss, especially around the midsection More visible muscle tone and definition These effects are primarily driven by improved GH and IGF-1 levels rather than testosterone changes