Spectral.NNC-N contains only active ingredients that have been tested for safety in various studies. The lotion also contains various herbal extracts and vitamins that are known to be safe with topical use on the scalp. Side effects of Nanoxidil are negligible, making it a good alternative to Minoxidil.
The Spectral.DNC-N formula is a combination of various ingredients. Just like with regular cosmetic products, an allergic reaction can occur if you are allergic to a certain ingredient. If the use of the lotion causes irritation or possible side effects, discontinue use immediately.