Undecylenic Acid

15 Reviews

Gel Capsules 250

Undecylenic Acid by Thorne Research contains undecylenic acid, a potent mono-unsaturated fatty acid that supports healthy intestinal and vaginal microflora.

See product ingredients
SKU: undecylenic-acid-THR
250Gel Capsules
$43.00
In Stock
Ships today if you order in the next 12 hours 42 minutes.

Product Details

Brand: Thorne Research

Product Code: undecylenic-acid-THR

Servings per Container: 50

Quantity per Container: 250 Gel Capsules


  • A healthy balance of gut flora, critical for overall health, provides immune system support, aids in the absorption of nutrients and proper gastrointestinal function, and has corresponding benefit to healthy vaginal flora
  • Imbalances of microflora can be attributed to many things including unhealthy diet, inadequate digestive enzymes, contraceptives, and prescription and OTC drugs
  • Undeclyenic acid, which occurs naturally in perspiration and the digestive tract, is 6 times more effective than caprylic acid in maintaining healthy vaginal flora

Ratings & Reviews

15 reviews

10/18/2011 12:00:00 am

Top product for yeast infections

by desert dweller -

My husband takes this product daily for systemic yeast infections (i.e. ""jock itch""). It has cleared his rash and relieved his back pain. (He continues to take it at night for the relief of back pain.) In addition to taking this supplement, he has curbed his sugar intake (even healthier ""raw"" sugars feed yeast, a fungi) and reduced ""stress.""

Not medical or professional advice

11/15/2011 11:00:00 pm

Feel better on SF722

by T-queen -

My doctor is recommending supplements which will achieve proper balance and digestion for my unique body and disease issues, and this is one of them. I started with 1 SF722 after each meal, and built up to 4 capsules after meals for weeks. I feel great, and did not crave sweets as much as usual. I was advised to minimize sugar and carbs while on this in order to allow it to work. I believe this supplement has been key in helping me achieve a healthier ""gut"" flora and my digestive tract works more effectively and feels better.

Not medical or professional advice

12/2/2011 11:00:00 pm

This has reduced my Candida! Amazing!

by beheerenow -

Two capsules twice a day has reduced and maybe even removed my Candida problem where nothing else has touched it in 10 years! Thank you!

Not medical or professional advice

6/12/2012 12:00:00 am

sf722 antifungal

by cam1023 -

does not work on its own; must also take Nystatin

Not medical or professional advice

6/12/2012 12:00:00 am

Candida? Not a problem

by Bryan the Healthy -

I had Candid for 10 years and this allowed my body to finally combat it.

Not medical or professional advice

11/4/2012 12:00:00 am

Great Product

by NeNe -

I use the product everyday before meals. I only wish the product was a little less expensive but its worth it because it works

Not medical or professional advice

5/1/2014 12:00:00 am

A product I have used for years!

by Too blessed to stress -

I started using this product many years ago when I was recovering from Poly-systemic candidiasis. It, along with a restricted diet and some other high-quality vitamin supplements, is what helped me turn the corner in my recovery and help me regain my health and my life. I now use it to maintain a healthy balance of intestinal flora.

Not medical or professional advice

5/1/2014 12:00:00 am

SF722

by Neon Starlight -

This product is amazing for folks recovering from candida! It's one of the best anti-fungals out there. The only downside is you have to take a ton of them, and that it's made from animal products :(

Not medical or professional advice

10/2/2014 12:00:00 am

SF722 Helps

by Debmeister

This product was handed to me by my MD whom also is a whole mind/body doctor.

Not medical or professional advice

8/20/2015 12:00:00 am

Formula SF722 works

by Melissa H.

Formula SF722 was recommended to me by my certified nutritionist. It has been invaluable in helping me.

Not medical or professional advice

7/21/2016 12:00:00 am

sf722

by chris g.

I take on average, 3/day around meals plus Undecyn off and on. I think it helps with digestion and with containing bacterial overgrowth, at any rate, I am not suffering these days. This routine has supplanted my caprylic acid intake although I do still take a capsule at bedtime when I think about it. I do not want to be without the sf722 and undecyn because I they seem to work for me.

Not medical or professional advice

12/23/2019 11:00:00 pm

Very Effective Product:

by Gary -

I am trying to kill fungus, and I like the product. It was recommended to me by a physician.

Not medical or professional advice

12/30/2023 8:00 pm

Excellent to manage candida, and sugar cravings.

by Juliane -

My naprapath recommended this formula to reduce gut candida and my sugar craving. It does exactly that with dosing am and pm.

Not medical or professional advice

1/23/2024 9:52 am

Excellent product

by Dan

I believe this product is more effective than caprylic acid.

Not medical or professional advice

2/13/2024 10:09 pm

Effective Thorne Product

by Jan -

Thorne puts out great and reliable products. This Undecylenic Acid has been a great digestive tract health aid to both myself and my husband. Highly recommend it.

Not medical or professional advice