Smyle Mouth Ulcer Gel is a topical herbal gel made from natural plant extracts, used for mouth ulcers and similar sores. It is applied inside the mouth on the affected area and is usually not swallowed. There is no substantial evidence that typical herbal ingredients at normal topical doses cause hemolysis in people with G6PD deficiency, and systematic reviews of herbal products did not find widespread harm in G6PD-deficient individuals at therapeutic doses. However, because G6PD deficiency means red blood cells are more sensitive to oxidative stress from certain substances, and because specific safety data for this gel in G6PD deficiency are not available, it is safest to consult your doctor or dentist before use. They can confirm whether it is appropriate for you based on your condition and overall health.