Nullo is not your typical chlorophyll pill. It is an internal deodorant caplet containing the active ingredient chlorophyllin copper complex. The copper works as the catalyst, transporting the chlorophyll throughout the body. It comes in an easy-to-swallow 100mg caplet designed to control body odor from the inside out. The Food and Drug Administration (FDA) has approved Chlorophyllin Copper Complex as safe and effective. No adverse reactions with other medications have been found, however, in a small percentage of cases, mild diarrhea was noticed. Take Nullo 5 to 7 days prior to your hunt. Most hunters take one in the morning and one at night. You may take up to three caplets per day. Maintain the same dosage everyday throughout your hunt. Remember, Take two and call the taxidermist in the morning!Available in 60 or 135 count bottles.