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Thorne Research, Formula SF722, 250 Gelcaps
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Thorne Research, Formula SF722, 250 Gelcaps
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Thorne Research, Formula SF722, 250 Gelcaps


55 Reviews
In Stock
  • Product Code: THR-72201
  • UPC Code: 693749722014
  • Package Quantity: 250 Gelcaps
  • Dimensions: 2.6 x 2.6 x 5 in, 0.45 lbs (0.2 kg)
Bundle Offer
Save $1.00 when you purchase these items today for only $39.55

Total: $40.55

Combo Discount: -$1.00

Together: $39.55

Product Overview

  • Dietary Supplement
  • Thorne's Innovative Approach for Healthy Gut Flora
  • Six Times More Effective Than Caprylic Acid
  • Maintains Healthy Vaginal Flora
  • One of our Best Selling Products for over 20 Years

Undecylenic acid - potent fatty acid support of healthy gut and vaginal flora

Optimal gastrointestinal tract functioning is vital to the absorption of nutrients, elimination of waste, and proper immune function. Many health-care practitioners consider gut function and especially good gut ecology – maintaining a healthy balance of gut flora, the microorganisms that normally live in the digestive tract – to be a key component to overall health. Many situations can contribute to an imbalance in the microbial flora of the digestive tract, including an unhealthy diet, inadequate digestive enzymes, oral contraceptives, and the use of various prescription and OTC drugs. Increasing recognition is also being given in women's health to the relationship between gut flora and vaginal flora; i.e., a healthy balance of gut flora has corresponding benefit to the vaginal flora.

Fatty acids have been used for centuries to help maintain a healthy balance of the microorganisms that normally live in the gastrointestinal tract. In the last 50 years, fatty acids have demonstrated effectiveness in supporting a healthy gut flora in a number of studies.

Undecylenic acid (10-undecenoic acid) is an eleven-carbon, mono-unsaturated fatty acid occurring naturally in the body's perspiration. While several fatty acids have beneficial effects on the flora that naturally inhabit the gastrointestinal tract, undecylenic acid is the most potent.

A Thorne Research innovation, Formula SF722 contains undecylenic acid in a base of pure, extra-virgin olive oil. Formula SF722 aids in the establishment of healthy gut and vaginal flora and has been one of Thorne Research's best-selling products for over two decades.

Suggested Use

Take 5 gelcaps two to three times daily or as recommended by your health-care practitioner.

Other Ingredients

Extra virgin olive oil, gelatin (bovine), purified water and glycerin (vegetable source) gelcap.


Tamper Evident: Use only if bottle is sealed.

If pregnant, consult your health-care practitioner before using this product.

Store tightly sealed in a cool, dry place.

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Supplement Facts
Serving Size: Five Gelcaps
Serving Per Container: 50
Five Gelcaps Contain: Amount Per Serving %Daily Value
10-Undecenoic Acid 250 mg *

*Daily Value (DV) not established

iHerb Customer Reviews

5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Very good so far
I started off very slowly on this product because I was wary of possible die off effects. One cap once a day, then one cap twice a day, then one cap three times a day, then two caps once a day plus another one cap twice a day, etc. Now I'm up to two caps three times daily. Although I felt some side effects on the first two caps such as fatigue and mental fogginess, this only lasted a couple of days. I started on a weekend so that any die off effects would not interfere with my work schedule. So far the SF722 has been great. I have noticed greatly improved breathing and reduced mucus production (somehow my intestinal problems have affected sinuses and breathing) since starting SF722. And craving sweet food has disappeared. I'm also doing my best to support my liver, as another commenter mentioned, by drinking a cup of dandelion coffee (technically it's tea, but it tastes and smells almost exactly like coffee) each day, along with plenty of water. The dandelion has been a great help - I feel immediately better afterward. Plus I'm taking Intestive, acidophilus and digestive enzymes (animal-derived pancreatin, not mold-derived enzymes). So far it all seems to be working well together.
Jun 24, 2013
Many, many times more effective than Caprylic acid. I believe it is something like 300x more concentrated - so don't bother taking ANYTHING with caprylic acid in - head straight for this product. Great value for what it is. Yes there may be a little die off to begin with, but that is how you know you finally have something that will really do the job. And, unlike so many other products - some of which do admittedly work such as oregano oil - there is NO negative effect on the other good flora and bacteria of the gut.
May 05, 2013

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