This depends on the type of peptide and your health goals
What is NAD+ commonly studied for
The skin's protective barrier can be compromised by excessive exfoliation, increasing the likelihood of dryness, irritation, and new pigmentation
It is strictly designated for laboratory research only and is not approved for human or animal administration
Side Effects Change in how much or how often you urinate, lower back or side pain, blood in your urine Unusual moods or behaviors, depression, thoughts of hurting yourself or others Blurred vision or any other change in vision Warnings Tell your doctor if you are breastfeeding, or if you have kidney disease, pancreas problems, diabetes, digestion problems (including gastroparesis), or a history of diabetic retinopathy or depression