The Original Indole-3-Carbinol - High Potency
(6 customer reviews)

The original indole-3-carbinol. Clinically tested and brought to market in 1995, Theranaturals I3C™ Caps continue to set the standard as the highest potency and purest Dietary Indole available today – the #1 choice for Practitioners worldwide. Just Feel Better! 100mg I3C/Capsule 100 capsules/bottle

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SKU I3C101 Categories ,


I3C (Indole-3-Carbinol) has numerous biochemical and inhibitory activities learn more, the most prominent being its uncontested ability to shift estrogen metabolism to more amicable pathways. I3C is a complex Dietary Indole molecule that produces hundreds of unique and active derivatives when broken down after consumption in the stomach and gut. This unique array of active compounds including, DIM, Ascorbigen, etc, has proven to be effective for a broader scope of applications than other Dietary Indoles. For this reason, more studies and documentation exist for I3C than any other Dietary Indole.

Dietary Indoles:

Theranaturals coined the term “Dietary Indoles” back in 1995 and it stuck. A dietary Indole is a special naturally occurring Phytonutrient found in super-vegetables like broccoli, Brussels sprouts, cabbage, etc. They have the remarkable ability to smooth out estrogen and hormone levels so benefits are often seen from head to toe – you just feel better.  Most notable, however, is their direct support of cervical, breast, prostate, adrenal, thyroid, and liver health.

Note: you will notice a strong smell from the product. This is normal and may vary by batch due to its organic nature. For best results, store in a dark cool dry environment away from direct heat and sunlight. The amber bottles help reduce decomposition and increases the longevity of the product. Current models suggest several years of shelf life if stored properly.  MFG date on the bottom of each bottle is the date of Manufacture NOT expiration.

Warning: Because of the estrogen shift, ask your doctor before taking this product if pregnant or lactating. It is not advisable to take if undergoing Chemo or Radiation treatments.

Top Uses 

  • hormone
  • cervical
  • breast
  • papillomavirus
  • methylation
Uses: severe PMS, postmenopausal hormone complications, breast and lung, human papillomavirus, cervical dysplasia, genital warts, reoccurring respiratory papillomatosis (RRP laryngeal warts), adrenal, thyroid, Fibromyalgia, Methylation, Detox, prostate

Other Names: 3-Hydroxymethyl Indole, 3 Hydroxymethyl Indole, I3C, Indole 3 Carbinol, 3-(hydroxymethyl), 3-(hydroxyméthyl), 3 (hydroxymethyl) Indole, 3-Indolylcarbinol, 3 Indolylcarbinol, 3-Indolylmethanol, 3 Indolylmethanol, Indol-3-Carbinol, Indole, Indole 3 Carbinol, Indole-3-methanol, Indole-3-méthanol.


Additional information

Weight 0.125 lbs


6 reviews for I3C-Caps

  1. Helena Patterson


    What are the side effects?

  2. Judy


    Dr. Bell recommended I take two a day a I have had cervical cancer previously and my paps and other procedures have not come back normal…I am hoping by taking this it will at least not get worse…my only complaint is this along with many of my other medications add up pricewise… but what does one do??

  3. Renee Duncan

    A life saver

    The I3C caps have worked a miracle for me. After my appendix was removed I was diagnosed with endrometriosis. The specialist was recommending surgery but wanted to wait for my body to health from the other surgery so the doctors all agreed and said they would retest in 6 months. During that time I started taking I3C and have taking 4 pills a day. Just had the follow up test and the doctors were amazed. My lining went ftom 8 mil to 6 mil. Normal is 4 for my age of 66. They said I should keep taking it and we will retest in another 6 months. This pill has truly made a major difference in my life.

  4. Sarah Pastian

    an amazing product

    I’ve been using I3C caps for over 8 years. My situation is unique and am doing great…I was introduced to this product by Dr Marie Bell, my OBGYN. I will visit with anyone who might be skeptical. I’m 68 yrs old, and KNOW this product to have helped me alot.

  5. Taz

    I started taking this back in 2007 for an abnormal Pap. My doctor at the time suggested this product and it cleared everything. I stopped taking it for a few years as all was fine. But just got the news that my old problems started again…so starting this protocol again. I love this.

  6. Sylvia hairston (verified owner)

    Great product be using for at least 20years or more after first child. I was diagnosed with abnormal paps and was having to have more frequent paps done after 2years of no abnormal paps I have been back to a normal schedule with no abnormalities thanks to this product. Like all I was introduced by a Germany specialist when I was at the cancer center for the abnormal paps in the early 2000’s as this was just starting to utilized. She which I wish I knew whom she was stepped in after the doctor wanted to do laser (leap) removal of abnormal cells, thankful she did. She gave me the information to this site and I have been purchasing from them every since. Throughout my years I will stop taking but will restart after a month or 2 but has been on a positive journey with clear paps for over 20 years.

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