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What's New? Dirty Genes -- The Histamine Workbook by Dr. Ben Lynch
What's New? Dirty Genes -- The Histamine Workbook by Dr. Ben Lynch

HomocysteX Plus - 60 Capsules

Rated 4.9 out of 5
Based on 198 reviews

HomocysteX Plus - 60 Capsules

Original price $32.95 - Original price $168.06
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$32.95 - $168.06
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Key Benefits and Actions

Key Benefits and Actions

  • Supports healthy methylation & homocysteine levels
  • Powerful heart health support
  • Supports healthy cognition & brain function

Who Needs HomocysteX Plus

Did your blood test results come back with high levels of homocysteine? Do you want to support healthy blood pressure and heart health? If so, your methylation cycle may need support.

HomocysteX Plus provides the 5 nutrients your body requires for optimal methylation. This unique formula supports the body’s normal homocysteine breakdown for heart health support.

HomocysteX Plus by Seeking Health supplies bioactive forms of four essential B vitamins along with betaine (TMG). These nutrients synergistically support healthy methylation and homocysteine metabolism.

Methylation is a critical process in your body. It is responsible for genetic expression, breaking down homocysteine, and many more vital biochemical functions.

Over 50% of the population has an MTHFR genetic mutation. This can slow down methylation in your body. A slowed methylation cycle can lead to elevated homocysteine levels. That’s because proper methylation is required to break down and clear homocysteine.

Several studies link high homocysteine levels with an increased risk of heart and blood flow problems. Amongst other ways, homocysteine increases cardiovascular risk by damaging the lining of the arteries, which may promote excessive blood clotting.

Elevated homocysteine levels have also been associated with cognitive and brain issues. Proper neurotransmitter metabolism relies on maintaining optimal methylation function as well.

Homocysteine breakdown requires the enzymes in your methylation pathway to be working properly. These enzymes need specific nutrients as “coenzymes” to make them run effectively.

HomocysteX Plus supplies the nutrient coenzymes needed by your methylation enzymes. These bioactive forms (listed in brackets) are efficiently utilized and well-tolerated by the body.

  • Folate (L-5-methylfolate)
  • Vitamin B12 (methylcobalamin & adenosylcobalamin)
  • Vitamin B6 (P-5-P)
  • Vitamin B2 (riboflavin; R-5-P)
  • Betaine (TMG)

These nutrients supply the necessary methyl groups and coenzymes to support your entire methylation pathway. By supporting methylation, you are also aiding the body’s natural breakdown of homocysteine.

HomocysteX Plus is a targeted heart health supplement designed by methylation expert Dr. Ben Lynch, ND. The nutrients included are in amounts and forms that are efficiently utilized and well-tolerated by the body.

Got MTHFR? Want to support healthy homocysteine levels? Need better methylation support? Talk to your doctor about including HomocysteX Plus in your daily healthcare routine.

Customer Review

Keeping my homocysteine in check!

I have a dirty MTHFR so I take HomocysteX Plus to help keep it clean. Just had my homocysteine labs done and I am in the optimal range. Thank you Seeking Health! ~Michelle L.

Key Ingredients In HomocysteX Plus

  • Folate (L-methylfolate or 5-MTHF): Superior form of folate. Can readily donate its methyl groups to break down homocysteine and support your entire methylation cycle. 5-MTHF is the preferred form of folate in the human body and is far superior to folic acid.
  • Vitamin B12 (methylcobalamin & adenosylcobalamin): Act as cofactors to support homocysteine regulation. B12 accepts a methyl group from 5-MTHF to aid the conversion of homocysteine into the beneficial amino acid methionine.
  • R-5-P (riboflavin 5’-phosphate): The active form of vitamin B2 (riboflavin). R-5-P is a coenzyme for the MTRR and MTHFR enzymes that support homocysteine conversion into beneficial methionine. Riboflavin also assists in the process of releasing energy from carbohydrates.
  • P-5-P (pyridoxal 5’-phosphate): The active, readily available coenzyme form of vitamin B6. P-5-P is required by over 140 enzyme reactions in the body. It is a coenzyme for the CBS and CTH enzymes that convert homocysteine into the amino acid cysteine. Cysteine can then be used to make glutathione, taurine, and sulfate–all important compounds utilized in detoxification pathways.
  • Betaine (TMG): Also known as trimethylglycine or TMG. Betaine is a powerful and important methyl donor in the body, especially for those with MTHFR polymorphisms. Betaine acts as a coenzyme to increase BHMT enzyme activity. Betaine-homocysteine methyltransferase (BHMT) is an enzyme that converts homocysteine into the beneficial amino acid methionine, particularly in liver cells.

Why HomocysteX Plus Works

In 1969, Dr. Kilmer McCully suggested that elevated homocysteine levels (hyperhomocysteinemia) were associated with heart issues. Since then, thousands of studies have confirmed his theory of homocysteine as a cardiovascular risk factor. As a result, many practitioners recognize the importance of keeping levels of homocysteine in a healthy range. Normal homocysteine levels require a functioning methylation cycle, which depends on the activity of multiple enzymes.

The body maintains healthy homocysteine levels by regulating the activity of a number of enzymes. These enzymes are located in your methylation cycle. They collectively work to convert homocysteine into either methionine or cysteine, which are beneficial amino acids.

The human body carries out methylation reactions in every single cell. The methylation cycle begins with the amino acid methionine. Via the MAT1A enzyme, methionine is converted into SAMe (S-adenosylmethionine). Once SAMe donates its methyl group to make creatine, phosphatidylcholine (PC), melatonin, or hundreds of other compounds, it becomes homocysteine. If the cycle slows down here, homocysteine levels can build up and become problematic.

It is essential to keep the methylation cycle moving to maintain healthy homocysteine levels. The most critical enzymes involved in homocysteine metabolism include:

  • CBS (Cystathionine Beta Synthase): Converts homocysteine into cystathionine, and then cysteine. About half of this cysteine is used to make glutathione, the body’s most important antioxidant compound. Both the CBS enzyme and the following CTH enzyme need adequate levels of vitamin B6 in the form of pyridoxal-5'-phosphate (P-5-P) to function.

  • BHMT (Betaine Homocysteine Methyl Transferase): This enzyme facilitates the donation of a methyl group from trimethylglycine (TMG) to homocysteine to recycle it into methionine.

  • MTHFR (MethyleneTetraHydroFolate Reductase): This is the final enzyme that carries out the manufacturing of 5-MTHF. A form of folate called 5-Methyltetrahydrofolate (5-MTHF) first donates a methyl group to cobalamin (B12) to make methylcobalamin. Then, methylcobalamin donates the methyl group to homocysteine, converting it into harmless methionine.

  • Unfortunately, the manufacturing of 5-MTHF is not easy. In addition, over 50% of the general population has an MTHFR gene mutation slowing down their MTHFR enzyme. Thus, taking only L-5-methylfolate is often insufficient for those with MTHFR mutations. Riboflavin in the form of riboflavin 5’-phosphate (R-5-P) is needed as a coenzyme for the MTHFR enzyme to work. If you have a gene mutation in this enzyme, having adequate amounts of R-5-P becomes increasingly important.

  • MTR (Methionine Synthase): This is the last enzyme in the methylation cycle. It accepts the methyl group from 5-MTHF and adds it back to homocysteine to synthesize methionine. This provides the body with more methionine to start the methylation cycle all over again.

Each of these enzymes relies on specific nutrients as coenzymes. These coenzymes act like a key to ignite methylation enzymes to work and run at an optimal pace. It is well known that deficiency can slow the function of these enzymes. With slower enzyme function, homocysteine levels may rise.

Most research focuses on vitamin B12 and folate (5-MTHF) deficiencies in relation to elevated homocysteine levels. However, riboflavin (R-5-P), betaine (TMG), and vitamin B6 (P-5-P) play equally important roles in maintaining healthy homocysteine levels.

Did your doctor say you have high homocysteine? This is a sign of poor methionine recycling. If you want to support proper methylation recycling, you may want to look at HomocysteX Plus or Methylate. Each was designed to support healthy homocysteine levels.

If you’re looking to support healthy homocysteine levels and optimal methylation, look no further than HomocysteX Plus by Seeking Health.

HomocysteX Plus
Supplement Facts

Serving Size: 1 Capsule
Servings Per Container: 60

Riboflavin (as riboflavin-5’-phosphate sodium) 25 mg 1,923%
Vitamin B6 (as pyridoxal-5’-phosphate) 15 mg 882%
Folate [as Quatrefolic® (6S)-5-methyltetrahydrofolate, glucosamine salt] 1,360 mcg DFE (800 mcg) 340%
Vitamin B12 (as MECOBALACTIVE® methylcobalamin and adenosylcobalamin) 1,000 mcg 41,667%
TMG (trimethylglycine) 700 mg **
**Daily Value (DV) not established.

Other Ingredients: Vegetarian capsule (hypromellose and water) and ascorbyl palmitate.
Quatrefolic® is a registered trademark of Gnosis S.p.A. Produced under US Patent 7,947,662.
MECOBALACTIVE® is a registered trademark of HealthTech BioActives SLU d.b.a. Ferrer HealthTech.

  • Suitable For: Vegetarians and Vegans
  • Age Suitability: Adults
  • Delivery Method: Capsules
  • How To Store: Keep closed in a cool, dry place out of reach by children.

Free Of: Eggs, Fish, Gluten, GMO, Milk, Peanuts, Shellfish, Soy, Tree Nuts, Wheat, Artificial Colors, Artificial Flavors, and Artificial Preservatives

How to Use HomocysteX Plus

Suggested Use

Take 1 capsule daily with or without food, or as directed by your healthcare professional. Do not take within 5 hours of bedtime as it may interfere with sleep.


Children and pregnant, lactating, or breastfeeding women should consult their healthcare practitioner prior to use for medical advice. Do not use if tamper seal is damaged.

How to Enhance HomocysteX Plus


Consider Pulsing

Dr. Ben Lynch recommends using certain dietary supplements based on your need for them. Start with a partial serving and increase slowly over time to the full serving, only if needed. When you start feeling good, consider reducing the serving size, skipping days, or pausing supplementation. Then take again when you feel you need it (stressful day, traveling, chemical exposure, etc.), hence "pulsing." Work with your qualified healthcare practitioner to determine what's best for you.


Pairs Well With

Optimal Magnesium a cofactor for the MAT1 enzyme need to convert methionine into SAMe Zinc Lozenge an important cofactor for both the MTR and BHMT enzymes which support conversion of homocysteine into methionine. PQQ Lozenge as antioxidant support for increased oxidative stress levels which occur during increased methylation.


Clean Your Genes

After years of suffering from unexplainable health issues, Dr. Ben Lynch, ND discovered the root cause - "dirty" genes. In his best-selling book, Dirty Genes, Dr. Ben Lynch describes the steps you can take to promote optimal epigenetic health. Ready to get started? Click here to take the Dirty Genes Quiz to find which of your genes are dirty!

Why Choose Seeking Health

Here at Seeking Health, we are committed to providing you the best in bioavailable supplements, methylation support, prenatal vitamins, genetic analysis tools, and more.

We strive to go above and beyond the average supplement company, which is why we allocate significant resources to testing all of our supplements for purity, potency, and label claims.

  • Third-party tested for heavy
    metals, microbials, and potency
  • Scientifically formulated by Dr. Ben Lynch, ND
  • Manufactured in the USA from globally
    sourced ingredients
  • Nutrients in their bioavailable
    forms for optimal absorption
  • cGMP facility registered by NSF International
Purity & Potency Tested & Assured
Scientifically Formulated by Dr. Ben Lynch
Manufactured in the USA from globally sourced ingredients third-party independently tested
Bioavailable Nutrients

FAQs for HomocysteX Plus

What is the purpose of each ingredient in HomocysteX Plus?

Ingredients Purpose
Riboflavin (as riboflavin 5’-phosphate sodium) Cofactor for MTRR and MTHFR, to support functioning of these two enzymes that convert homocysteine into methionine
Vitamin B6 (as pyridoxal 5’-phosphate) Cofactor for the CBS enzyme which converts homocysteine into cystathionine
Folate (as Quatrefolic® (6S)-5-methyltetrahydrofolate, glucosamine salt Provides methyl groups necessary to support methylation processes and pathway function
Vitamin B12 (as MECOBALACTIVE® methylcobalamin and adenosylcobalamin) Needed to convert homocysteine to methionine, and for methylfolate to properly donate methyl groups to methionine
TMG (trimethylglycine) A strong methyl donor to support methylation cycle function; Increases BHMT enzyme activity for conversion of homocysteine to methionine

Who is HomocysteX Plus intended for?

HomocysteX Plus is intended for those seeking support for homocysteine metabolism, methylation, blood flow, cardiovascular health, and brain health in an easy, single capsule serving.

How to use HomocysteX Plus?

Take 1 capsule daily after breakfast, or as directed by your healthcare provider. Do not take within 5 hours of bedtime or it may interfere with sleep.

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What our customers say

Real reviews from real customers.

average rating 4.9 out of 5
Based on 198 reviews
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98% of reviewers would recommend this product to a friend
198 Reviews
Reviewed by Cathy F., from United States
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Rated 5 out of 5
Review posted


My husbands doctor put him on this. he's super healthy and never forgets it.

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Reviewed by Linda C., from United States
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Rated 5 out of 5
Review posted

Histamine Helper

I was elated to find this product! Beforehand, I was experiencing itchy hives for mysterious reasons. I was looking for a natural solution and this has done the trick. It couldn’t have come at a better time. Thank you so much!

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Reviewed by Amanda, from Canada
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Rated 4 out of 5
Review posted

Not MF - so not for me

Not for those who require MF. Otherwise a great product. Bought this early in my healing journey before I realized I do better with MF. I now get these ingredients MF in my other supplements - and TMG in a much smaller dose in my liver nutrients.

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