Adults (18 yrs+): For best absorption of nutrients and the least chance of experiencing the Niacin flush, take 1 packet (2 brown tablets and 2 gray tablets) after each meal, 3 times per day. Taking more than one packet at a time, increases the likelihood of a Niacin flush. 

Teenagers (15-17 yrs) Usage: Take 1 packet after a full breakfast and again after lunch. 

Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6. Keep this product out of reach of children. In case of accidental overdose, call a doctor or poison control center immediately.

If this is your first time taking the Opti-Energy Pack, please read!

The Niacin Flush-Safe, Beneficial & Invigorating

Niacin improves blood circulation in your body, increasing nutrient and oxygen delivery to your cells, while improving waste product removal. This improved "niacin skin flush", which is a warm, tingling, reddening of the skin. The niacin flush can last from 15 -60 minutes and may be followed by a slight passing chill. In very rare cases, the niacin flush may result in a rash or other mild side effects which tend to diminish or disappear upon lowering the dose or discontinuing. SuperNutrition uses niacin preferentially over niacinamide because niacin is the more active form of vitamin B3. Niacin has been shown to improve memory test scores and cardiovascular health.

Store in a cool, dry place or frost-free refrigerator.

Product color and aroma may vary or change overtime due to natural ingredients.

This package is for households without young children.

Package is not child resistant

While iHerb strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site. Although items may occasionally ship with alternate packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and not rely solely on the information provided by iHerb.