Flush
Flush
Effective & easy way to flush your urinary tract. This drink mix is here to keep you covered when you need it most – like after sex, travel, or exercise.
- 60-Day Money-Back Guarantee
- FSA/HSA eligible
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Money-back
Customer Support
Discreet Packaging
Lemonade Flavor
Vegan
Antibiotic-free
Gluten-free










Why the Complete Regimen?
The Complete Regimen features our 3 essential, proactive products in one convenient bundle—our most popular choice. Each product is designed to serve a unique purpose, working together to provide comprehensive support. Flush, our drink mix,when taken daily, is an effective, easy way to flush your urinary tract. Defend cleanses biofilm and supports bladder wall integrity. Promote, our clinically studied vaginal probiotic blend, supports your vaginal health. †
Why Flush?
Flush is one part of our 3-part proactive regimen, recommended for anyone who wants better urinary tract health. Our signature drink mix is an effective, easy way to flush your urinary tract. You can take Flush by itself, but if urinary health impacts your life 3 or more times a year, you should bundle this with Defend
All about Flush

How it works
- Flush's ingredients work quickly to gently flush the urinary tract. Special ingredients alkalize the urine, making it less acidic, unlocking the power of d-mannose. At the same time, Flush’s ingredients take effect upon urination, and deliver immune support.
Directions
- Mix one packet in 8-12 ounces of water. Drink Flush every 3 days and after sex.
What flavor is Flush?
- Flush has 2 flavor options - unflavored and a mild pink lemonade flavor.
How much do I need?
- If you are not having sex: Get 10 packets of Flush and drink every 3 days
- If you are sexually active: Get 20 packets of Flush and drink every 3 days, and immediately after sex.
- If you want maximum support: Get 30 packets of Flush and drink every day.
Flush's science and ingredients

Calcium
Calcium is an ion that acts as an electrolyte. Calcium comes from our diet, and is required for a range of things, including bone production and strengthening, proper nerve function, and muscle function. In Voolast Flush, calcium is included in a salt form with ascorbate, called calcium ascorbate. When in fluid, these salts dissolve into calcium and ascorbate ions. Calcium intake needs to keep up with or exceed calcium loss in the urine in order to maintain proper bone mineralization and hydration.
Citric Acid
Citric acid is a weak acid commonly found in many fruits. Despite being an acid, it has an alkalizing effect on the urine, meaning it makes the urine less acidic. Citric acid, along with the natural lemon flavor, gives Voolast Flush its sour citrus taste. *Pink Lemonade Flavor Only
D-Mannose
D-Mannose is a type of carbohydrate that occurs naturally in small quantities in many fruits and vegetables including apples, peaches, green beans, and broccoli. D-Mannose is an important part of human metabolism and urinary health. It has been shown to bind to microorganisms and flushes them from the urinary tract.
Magnesium
Magnesium is another essential nutrient lost during urination. It is required for hundreds of functions in the body, including the creation of DNA. The magnesium in Voolast Flush is in the form of magnesium ascorbate (the magnesium salt of Vitamin C) and magnesium carbonate (the salt of magnesium and carbonate, which is used to carbonate water).
Potassium Citrate
Citrate is the salt form of citric acid. In Voolast Flush, we have potassium citrate. When mixed in water, potassium citrate dissolves into potassium and citrate ions. Potassium citrate has an alkalizing effect on the urine, meaning it makes the urine less acidic. Potassium ions are required for proper hydration and replace the potassium lost during urination.
Vitamin B6
Vitamin B6 refers to a group of compounds that enable proper protein, carbohydrate, and fat metabolism. The form of Vitamin B in Voolast Flush is called pyridoxine hydrochloride. Pyridoxine is found in many common plant foods like pistachios and cacao. Vitamin B6 is an essential nutrient, meaning that people need to obtain it from the diet to live. Vitamin B6 is water-soluble and excreted in the urine. Its involvement with many interactions in the body, make it foundational to whole body health.
Vitamin C (non-acidic)
The form of Vitamin C found in Voolast Flush is called ascorbate. Ascorbate is the non-acidic salt of ascorbic acid. Vitamin C is also an essential nutrient, and is required for many processes in the body, including immune system function. It is an antioxidant, which provides protective benefits in the human body and is excreted in the urine. Vitamin C has been studied for its positive effects on the immune
system.
Common questions about Flush

Can I drink more than one packet of Flush a day?
Yes, many of our customers drink Flush daily. To be extra safe, we recommend you don’t exceed taking more than 3 individual packets per day.
We do not recommend drinking Flush while on antibiotics because Flush contains potassium and it may be important to limit potassium intake while on some antibiotics. You should begin Flush as soon as you have completed your antibiotics. Keep in mind, Voolast’s products are not a treatment.
Can I drink more than one packet of Flush a day?
Yes, to stay safe, we recommend not exceeding three individual packets per day.
We don’t recommend drinking Flush while taking antibiotics, as it contains potassium, and some antibiotics may require limiting potassium intake. You can begin using Flush as soon as you’ve completed your antibiotics.
Please note that Voolast’s products are not intended as a substitution to antibiotics.
Can I take Flush alongside the other products (Promote and Defend)?
Yes, Defend, Flush and Promote, are meant to be taken together. All together, these products make up our Complete Regimen - our most popular product bundle. Taking all three products together provides you maximum urinary support. Flush (our drink mix) flushes the urinary tract, Defend cleanses biofilm from the urinary tract and supports bladder wall integrity, and Promote helps maintain healthy vaginal bacteria. Get the Complete Regimen
How do I know if Flush is right for me?
Flush is one part of our 3-part proactive regimen because it is beneficial for anyone looking for better urinary health. Our signature drink mix is an easy, effective way to flush your urinary tract on a regular basis. Flush can be taken by itself but we do recommend adding Defend if you’re regularly affected by urinary tract health.
How many carbs are in one serving of Voolast Flush?
There are 3 grams of carbohydrate in one serving of Flush.
D-mannose is a key ingredient in Flush and is classified as a carbohydrate. Flush contains 2 grams of D-mannose. However, because the body uses only minimal amounts of D-mannose, it should not interfere with normal, healthy blood sugar regulation.
When should I drink Flush?
Mix one packet of Flush with 8–12 oz of water and drink it after sex, or at least once every three days. Even if you’re not sexually active, Flush is beneficial for regularly flushing the urinary tract.
Flush can be taken at any time of day. If you’re also using Voolast’s other proactive urinary tract health supplements (Defend and/or Promote), it’s safe to take them together—just swallow each separately.
Our refund policy
Your well being is our #1 priority. If Voolast doesn’t work for you, we’ll give you your money back.
And we promise our customer success team will make it easy. We pride ourselves on having a responsive, caring team full of real people ready to answer all your questions and help in any way.

From our founder: I had 8 UTIs in one year…
“I was stuck in the cycle of UTIs for years. I was desperate for a way to get ahead, but was told there was little I could do. This inspired my husband and I to start Voolast, alongside doctors & scientists. Now, we’ve been able to help over 500,000 people and counting. Ready to give us a try?”