# Cognivex > Independent research on Cognivex, a liquid drops supplement with methylene blue, zinc and potassium, marketed for memory and focus support. Not a treatment for memory loss or any condition. ## Key facts - Format: liquid drops, 30 servings per bottle, 1 fl oz (30 mL) on the label - Ingredients named (no amounts): methylene blue, zinc citrate, potassium chloride, purified water, sodium benzoate, potassium sorbate - Dose: 1 mL once daily in 8-10 oz of water, preferably in the morning with a meal; start with 5 drops and add 5 drops weekly up to a full dropper - Pricing listed: 2 bottles $79 each ($158); 3 bottles $69 each ($207); 6 bottles $49 each ($294); free shipping listed on all - Guarantee: 60-day satisfaction promise; no refund terms stated - Not found: ingredient amounts, manufacturer name, GMP or lab testing, verifiable ratings, any trial of the finished drops - Safety: methylene blue has known interactions with serotonin-affecting medicines; ask a doctor or pharmacist first; not for under 18, pregnant or breastfeeding - Not intended to diagnose, treat, cure or prevent any disease ## Pages - [Home](https://coognivex.com/) - [What Is It](https://coognivex.com/what-is-cognivex.html) - [How It Works](https://coognivex.com/how-cognivex-works.html) - [Ingredients](https://coognivex.com/cognivex-ingredients.html) - [Benefits](https://coognivex.com/cognivex-benefits.html) - [Reviews](https://coognivex.com/cognivex-reviews.html) - [Blog](https://coognivex.com/blog/) ## Disclosure Independent review site; earns a commission on purchases through links to the official seller.