See it in action
Short films from the people who make it, and real posts from the people who take it.
The research behind it
This formula was developed under Dr. Ray Strand, MD, which is the part of the Nutrifii line worth understanding before you compare it to a supermarket multivitamin.
Forty years in practice
Dr. Strand practiced family medicine for four decades before moving into nutritional medicine, and is Partner.Co's chief medical officer. He has written several books on nutritional supplementation aimed at physicians rather than consumers.
Ratios over label appeal
The Optimals pair splits vitamins and minerals across two formulas rather than one tablet. That is not a marketing decision: certain minerals compete for absorption with each other and with some vitamins, so a single tablet listing everything at once often delivers less than its label suggests.
Tested, repeatedly
The range goes through more than a thousand quality tests a year across raw materials and finished product.
Checked by someone other than us
Every mark below is issued by an outside organization with its own testing and audit process. Each one links to that organization, so you can confirm it without taking our word for it.
NSF Certified
NSF, formerly NSF International, is an independent testing and certification company accredited by the American National Standards Institute. Its supplement program checks that what is on the label is in the bottle, and audits the facility that made it.
nsf.orgCologne List
The Cologne List screens supplements for substances on the World Anti-Doping Agency's prohibited list, at a laboratory that specializes in doping analysis. It is the check competing athletes are told to look for.
koelnerliste.comListed in the PDR
The Physicians' Desk Reference, published by ConnectiveRx, is the product reference that sits in clinical practices. A listing puts the full product information in front of physicians and pharmacists.
pdr.netQuestions people actually ask
Nutrifii Vináli, answered straight
How much should I take?
One capsule twice daily, preferably with meals. There are 56 capsules per bottle. This is the serving size on Partner.Co's own fact sheet for this product, not our interpretation of it.
Compare every product's dosageWhat is actually in it?
Vitamin C (from calcium ascorbate, acerola cherry, amla fruit extract, green pepper extract, ascorbyl palmitate) – 310 mg, Calcium (as calcium ascorbate) – 36 mg, Grape Seed Extract – 100 mg, Grape Skin Extract – 30 mg, Citrus Bioflavonoids – 10 mg, Other Ingredients: Hypromellose, rice bran. Where an amount per serving is shown, it is taken from the product's Supplement Facts panel.
Where does this ship from, and who am I buying from?
The Perfect Nutrition is an independently owned marketplace and an authorized Partner.Co distribution partner. We are not Partner.Co and we do not manufacture anything. Products ship as the genuine, unaltered article through Partner.Co's fulfilment network.
How this relationship worksCan I return it if it does not suit me?
Most products carry a 30-day money-back guarantee, and Slenderiiz Day & Night Drops carry 45 days. Keep the original packaging and the batch number where you can, since both are needed to process a return. Return shipping is the customer's responsibility.
Full returns policyShould I check with a doctor first?
If you are pregnant or nursing, taking prescription medication, managing an existing condition, or buying for someone under 18, yes. We are a retailer. We can tell you what is in a product and what the label says, and we are not in a position to tell you it is appropriate for you.
Individual results may vary. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
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