Doctor in front of DNA strand and nutrients like B12 and 5-MTHF representing bioavailable vitamins for genetic absorption support

Delivering Methylated Vitamins That Actually Work

At Vitamins That Work, we specialize in one thing: methylated B vitamins

Every recommendation we make is based on clinical research, ethical sourcing, and active nutrient forms

Our content is rooted in science, not hype. We review supplements through a lens of genetic compatibility, bioavailability, and transparency. Because when it comes to B vitamins, the form matters and so does your DNA.

We’re not doctors we’re researchers and affiliate marketers committed to honest reviews. From methylated B-complexes to genetic testing tools, everything we share meets strict, non-negotiable quality standards.

Always consult your healthcare provider before starting any supplement. Our content is educational, not medical advice.

Ready to find the right methylated B vitamins for your body? Start with a genetic test and discover what your body really needs.

Delivering the Right B Vitamins for Your Unique MTHFR Mutation

One-size-fits-all vitamins don’t work when your genes say otherwise. As someone who researches supplements full-time, I’ve seen how MTHFR mutations can drastically change how your body uses B vitamins—especially folate, B12, and B6. That’s why I created this guide: to connect your exact genetic combination with the right bioavailable B-complex supplement.

Every product below meets strict, non-negotiable criteria:

This isn’t a generic “top B vitamins” list—it’s a personalized matching system based on your specific MTHFR genotype combination. Whether you’re heterozygous, homozygous, or compound, I’ve linked the best methylated B complex for your needs—directly from Amazon, where you can easily check ingredients, reviews, and lab testing for yourself.

Use the chart above to find your combination and select the linked product that aligns with your methylation support needs.

Important: I’m not a doctor, and this isn’t medical advice. What I share is based on science, not sponsorship. I always recommend consulting with your practitioner before starting any new supplement.

GenotypeSupplementKey FeaturesWhy It Works
C677T: CC + A1298C: AAPure Encapsulations B-Complex PlusMethylfolate, Methylcobalamin, P-5-P, HypoallergenicFoundational support without excess methyl donors
C677T: CT + A1298C: AAJarrow Formulas B-RightMethylfolate, Methylcobalamin, P-5-P, CholineBalanced methylation support, mild variant
C677T: TT + A1298C: AAThorne Research Basic B ComplexMethylfolate, Methylcobalamin, P-5-P, No fillersHigh support for enzyme reduction, tested formula
C677T: CC + A1298C: ACGarden of Life Raw B ComplexWhole-food base, Probiotics, Methylated B vitaminsGentle support for neurotransmitter function
C677T: CC + A1298C: CCKlaire Labs B Complex PlusMethylfolate, Methylcobalamin, Choline, InositolSupports neurotransmitter and detox pathways
C677T: CT + A1298C: ACPure Therapro Rx Methyl Active BMethylfolate, Methylcobalamin, TMG, P-5-PComprehensive for dual mutation support
C677T: TT + A1298C: ACMethylated B Complex 9-in-19-in-1, TMG, Methylfolate, MethylcobalaminSupports high methylation and homocysteine
C677T: CT + A1298C: CCKlaire Labs B Complex PlusMethylfolate, Methylcobalamin, P-5-P, Active coenzymesTargets neurotransmitter and detox needs
C677T: TT + A1298C: CCOptimal Multivitamin by Seeking HealthMethylfolate, Methylcobalamin, TMG, P-5-PSevere support for complex methylation

Note: Always consult with a healthcare provider before starting any new supplement regimen, especially if you have underlying health conditions or are on medication.


Methylated B Vitamins and Gene Support

Bioavailable forms of B vitamins matched to specific gene mutations based on peer-reviewed evidence.

Methylated B VitaminGene Mutations SupportedOptimal FormClinical Use CasePubMed Link
L-Methylfolate (B9)MTHFR (C677T, A1298C), DHFRQuatrefolic® or Metafolin®Bypasses MTHFR enzyme block, supports DNA methylationStudy
Methylcobalamin (B12)MTR, MTRR, TCN2, FUT2Methylcobalamin (sublingual/injection)Supports remethylation of homocysteine to methionineStudy
Pyridoxal-5-Phosphate (B6)CBS, SHMT1P-5-P (active B6)Supports transsulfuration and neurotransmitter synthesisStudy
Riboflavin-5-Phosphate (B2)MTHFR, MTRRFAD or Riboflavin-5′-PhosphateStabilizes MTHFR enzyme in 677TT genotypeStudy
Betaine (TMG)BHMT, PEMTTrimethylglycineAlternative methyl donor when MTHFR/MTR is impairedStudy

Genetically Matched Methylated Vitamins for MTHFR, COMT, and More

Featured: Methylated B Complex Designed for Your Genetic Needs

If you have gene variations like MTHFR, MTRR, CBS, or COMT, your body may struggle to process standard B vitamins. That’s where Micro Ingredients Pure Methylated B Complex stands out. This formula delivers only active, methylated vitamins no synthetic forms, no fillers, just nutrients your body can use.

Formulated with L-5-MTHF, methylcobalamin, P5P, R5P, choline, and inositol, this 11-in-1 B complex is designed to bypass genetic bottlenecks and support optimal methylation. Whether you’re dealing with fatigue, poor focus, mood swings, or elevated homocysteine, this supplement targets the root causes linked to your unique genetic makeup.

This formula is non-GMO, filler-free, third-party tested, and designed for real-world results not just label claims. With 240 capsules per bottle, it’s a clean, cost-effective solution for long-term genetic support.

Read the full product review to learn how this formula ranks for purity, absorption, and genetic compatibility.

Disclaimer: The information provided on this website is for educational purposes only and is not intended as medical advice. I am an independent researcher sharing peer-reviewed science and product analysis. Always consult with a licensed healthcare professional before starting any supplement or health regimen.

  • Micro Ingredients offers Pure Methylated B Complex Vitamins. 11-in-1 support with fat-soluble vitamin C. A capsuled form…
  • Each bottle contains 240 capsules. Offers vitamin C (ascorbyl palmitate + ascorbic acid), thiamin, riboflavin (R5P), nia…
  • An advanced B complex with vitamin C, choline, and inositol promotes various health benefits that target energy, cellula…


Scientific References: Genetic Mutations and Methylated Vitamins

Impact of COMT Activity on Neurotransmitter Methylation and Mood

MTHFR (C677T, A1298C)

Folate and MTHFR Deficiency in Neurological and Psychiatric Disorders

Effect of MTHFR 677C>T on Homocysteine and Folate Status

L-methylfolate as an Adjunctive Treatment in MTHFR Variants

MTR / MTRR

Polymorphisms in MTR and MTRR and Their Influence on Homocysteine Levels

Methylcobalamin and Homocysteine Metabolism in MTR/MTRR Carriers

CBS (Cystathionine Beta-Synthase)

CBS Gene Variants and Transsulfuration Pathway Regulation

Vitamin B6 as a Cofactor for CBS in Homocysteine Clearance

COMT (Catechol-O-Methyltransferase)

COMT Val158Met Polymorphism and Dopamine Regulation