Liquid Iron & Vitamin C Supplement. Less side effects (By consuming Pur-Absorb, side effects are less likely because of the gentle dose.) One packet a day provides the absorbable iron you need (The US RDI for iron is based on 18% bioavailability of ingested iron. Because Pur-Absorb has been clinically shown to be absorbed at a 40% rate, less supplemental iron is needed to fulfill the daily iron needs). Clinically shown high absorption rate. 28 one-a-day packs. Plus vitamin C for enhanced absorption. Pur-Absorb combines 100% natural iron-rich water sourced from the springs of Snowdonia (North Wales, UK) with a delicious apple taste and vitamin C to help you absorb more iron. Iron deficiency is a common problem for athletes, vegetarians and pregnant women. If iron supplements have been recommended by your doctor, Pur-Absorb is an effective choice. Questions? 1-800-319-9151. Gluten free, kosher, non-GMO. purAbsorb.com. Facebook: facebook.com/purAbsorb. You've been told you need more iron. With Pur-Absorb, less is more. Typical Iron Supplements: 65 mg iron per dose; 2 mg iron needed; 63 mg excess iron. Too much iron can cause constipation and other uncomfortable side effects. Pur-Absorb: 5 mg iron per dose; 2 mg iron needed; 3 mg excess iron. With clinically shown high absorption rate, one dose of Pur-Absorb naturally provides the absorbable iron you need (The US RDI for iron is based on 18% bioavailability of ingested iron. Because Pur-Absorb has been clinically shown to be absorbed at a 40% rate, less supplemental iron is needed to fulfill the daily iron needs). And with a gentle dose side effects are less likely. A better way to take iron. It's simple. A gentle dose + clinically shown high absorption = less side effects. Product of the UK.