MTHFR Testing Kit

Methylation Testing. Determine if you have a MTHFR gene variant present with this easy home cheek-swab collection.


MTHFR (Methylenetetrahydrofolate Reductase) is very critical in the function of methylation, a complex biochemical process that regulates gene expression (turns genes on & off) and governs intracellular detoxification. MTHFR is needed for the metabolism of folate (folic acid) and is a cofactor needed to convert homocysteine (a potentially toxic amino acid) to methionine. MTHFR has been linked by many researches to conditions such as Blood Clots, Heart Disease, Fibromyalgia, Migraine Headaches, Infertility, Autism, Birth Defects, Miscarriages, IBS, Mental Illness and many more.

*Please note that this testing kit does NOT include an analysis to go over your results with one of our coaches. We highly recommend getting the analysis as the results can be a lot to digest on your own. An analysis with ones of our coaches provides you with a full recap email, step-by-step instructions for implementing changes and direct 1:1 support.


MTHFR Home Test Kits test the two most important genes: MTHFR C677T and MTHFR A1298C. A simple cheek swab. Safe for men, women and children of all ages… even babies.

MTHFR C677T can also lead to high homocysteine. Although it does not necessarily mean there will be high homocysteine levels in a clinical setting as there are other factors that can influence homocysteine levels. This allele has shown in research to have a greater impact in someone’s health.

MTHFR A1298C has not been found clinically to have an effect in homocysteine levels. This allele has a greater effect in the production of BH4 (tetrahydrobiopterin). BH4 is a cofactor in the production of neurotransmitters such as serotonin, etc. A deficiency of BH4 may affect the cardiovascular and neurological systems as well as emotional wellbeing.

Compound heterozygous is considered severe or “at risk”. High homocysteine has a high risk factor for numerous diseases. The MTHFR mutations with homozygous or compound heterozygous are more likely to have elevated homocysteine and greater risk of heart disease.

MTHFR test is extremely important to evaluate DNA methylation function. Mutations occurs in over 80% of the population.



  1. Why don’t I just measure homocysteine? The reason you test for MTHFR mutations is not because of homocysteine but rather to find out if you have enough usable folate for your methylation. Homocysteine is not the best marker for methylation; Folate + MTHFR are! Example: MTHFR C677T raises homocysteine levels but CBS (Cystathionine Beta Synthase) C699T lowers homocysteine. If you have a homozygous mutation of MTHFR and a homozygous mutation of CBS your homocysteine may look normal but your body will not have enough conversion of homocysteine into methionine and you will be in undermethylation. There are other known factors that can also elevate homocysteine like thyroid disorder and kidney disease.
  2. Why don’t I just measure serum folate? When you measure serum folate you are measuring every type of folate including unmetabolized folic acid and raw folate. Your body still needs to metabolize the serum folate into 5-L-MethyleneTetraHydroFolate, the usable form. If you have a homozygous mutation on MTHFR C677T you will lose roughly 70% enzyme activity and therefore your true usable folate could be as low as 30% of what the blood test shows. MTHFR is paramount for methylation!
  3. Why should you get tested? MTHFR affects methylation which in turn may affect many aspects of your health. MTHFR may also elevate homocysteine but this is not the main reason to get tested. The sooner you know if you have a mutation the sooner you can take steps to address it and prevent possible complications.
  4. Do You Need A Prescription? No. If you order a cheek swab home testing kit from us you do not need a prescription.
  5. How Accurate Is A Saliva Test Compared To A Blood Test? A saliva test is just as accurate as a blood test. Additionally, the saliva or cheek swab test is non-invasive and is the most recommended form for children and babies. Many doctors also prefer the cheek swab test over the blood test for convenience reasons.
  6. Do You Need To Have Any MTHFR Symptoms To Get Tested? No. Methylation imbalances often begin with no symptoms until much later when your body starts to break down. When that happens, depending on the system that is breaking down you may experience a variety of different MTHFR mutation symptoms.
  7. Do You Need To Have Elevated Homocysteine To Get Tested? No. There are also other causes for homocystenuria (elevated homocysteine) and MTHFR mutation is only one of the possible causes.
  8. Do You Need Any Test Preparation? No. This test does not require any preparation.
  9. Is There Anything Else I Should Know? People with MTHFR mutations are at increased risk for numerous health conditions. You should consult your physician to find out what are your risks based on your results. MethyleneTetraHydroFolate Reductase.


Hi, I’m Brianne

Here at The Holistic RN you’ll find a place where holistic healing and western medicine come together to create a brand new way of looking at your health- including real food recipes, easy to understand information and overflowing inspiration. Let’s get started!

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