Sentinel Stress 600 + Biotin Tablets - Supports Energy Metabolism and Stress Management. ‣ Contains 600mg of essential B-vitamins. ‣ Includes Biotin for healthy hair, skin, and nails. ‣ Supports energy metabolism and stress response. SUGGESTED USE: Take 1 tablet daily, preferably with a meal, or as directed by your healthcare provider. INGREDIENTS: B-Vitamin Complex, Biotin, Tablet Excipients.