Klaire Labs/SFI Health

Thera-B, 60 Capsules

Thera-B by Klaire Labs/SFI Health is a high-potency B-complex formula delivering the full spectrum of B vitamins, including active coenzyme forms such as methylcobalamin, methylfolate (5-MTHF), and pyridoxal-5-phosphate (P5P), to support energy metabolism, neurological function, and cardiovascular health.

May be a fit for

  • Adults seeking activated B-vitamin forms like methylcobalamin and pyridoxal-5-phosphate
  • Practitioners protocols requiring high-potency B-complex in clinical patient regimens
  • Individuals supporting methylation pathways with coenzyme-ready B-vitamin cofactors
$13.99

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CapsulesFormat
60 CapsulesPack size
The essentials

A closer look.

Thera-B by Klaire Labs/SFI Health is a high-potency B-complex formula delivering the full spectrum of B vitamins, including active coenzyme forms such as methylcobalamin, methylfolate (5-MTHF), and pyridoxal-5-phosphate (P5P), to support energy metabolism, neurological function, and cardiovascular health. Designed with a practitioner-grade approach, it's well-suited for individuals with methylation challenges or those who may have difficulty converting standard B vitamin precursors into their biologically active forms.

Why It's Worth Considering: The use of pre-converted, coenzyme forms bypasses common metabolic bottlenecks, making nutrients more readily available for cellular use, a meaningful distinction from standard B-complex products.

Klaire Labs/SFI Health - Thera-B, 60 CapsulesKlaire Labs/SFI Health · 60 Capsules
Make it part of your day

Make it part of your routine.

Adults: 2 capsules daily with food or as directed by a healthcare professional. Children: As directed by a healthcare professional.

Read the complete label
Inside the formula

Product details

Supplement facts & complete label

Serving Size: 2 Capsules

Amount Per Serving
Thiamin … 50 mg
(as thiamin hydrochloride)
Riboflavin … 50 mg
Niacin … 50 mg NE
(as niacinamide)
Vitamin B6 … 50 mg
(as pyridoxine hydrochloride)
Folate … 680 mcg DFE
(as Metafolin® calcium L-5-methyltetrahydrofolate) (400 mcg)
Vitamin B12 … 100 mcg
(as methylcobalamin)
Biotin … 1,500 mcg
(as D-biotin)
Pantothenic Acid … 200 mg
(as calcium D-pantothenate)
Choline … 39 mg
(as choline bitartrate)
Calcium … 20 mg
(as calcium D-pantothenate)
Inositol … 100 mg
para-Aminobenzoic Acid … 50 mg

Other Ingredients: Vegetarian capsule (hydroxypropyl methylcellulose, water), microcrystalline cellulose, stearic acid, and silicon dioxide.

Made without common allergens 
No synthetic colors, flavors, or preservatives

CAUTION: Consult with your physician if you are pregnant or nursing, or have any medical condition, or taking prescription drugs, or under the age of 18 years.

KEEP OUT OF REACH OF CHILDREN

WARNING: Consuming this product can expose you to chemicals known to the State of California to cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov/food

Label directions

Adults: 2 capsules daily with food or as directed by a healthcare professional. Children: As directed by a healthcare professional.

Source: authorized supplier catalog · September 06, 2026. Formulas and labels can change. Check the packaging you receive.

Who it may suit

May be a fit for

  • Adults seeking activated B-vitamin forms like methylcobalamin and pyridoxal-5-phosphate
  • Practitioners protocols requiring high-potency B-complex in clinical patient regimens
  • Individuals supporting methylation pathways with coenzyme-ready B-vitamin cofactors
  • Those with increased B-vitamin demands from metabolic or physiological stress

Considerations

  • Known allergy to any ingredient (check label)
  • Currently pregnant or breastfeeding (consult healthcare provider)
  • Taking prescription medications (check for interactions)
  • Under 18 years of age (unless recommended by pediatrician)
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Good to know

A few useful answers.

Research & further reading

More category questions

How should I store this supplement?

Store in a cool, dry place away from direct sunlight. Most supplements are stable at room temperature (59-77°F). Keep the bottle sealed between uses. Check the label for any specific storage requirements — some probiotics and oils require refrigeration.

Can I take this with other supplements?

Most supplements can be taken together safely. However, some minerals compete for absorption (zinc and iron, calcium and magnesium) and should be taken at different times of day. If you're taking prescription medications, consult your healthcare provider about potential interactions.

How long should I take this supplement?

Most supplements benefit from consistent daily use over 2-3 months to achieve full effect. Some (like vitamins and minerals) can be taken indefinitely as part of a daily routine. Others (like specific herbs) may benefit from cycling. Follow the product's recommended protocol or consult a practitioner.

When is the best time to take this?

Fat-soluble supplements (vitamins A, D, E, K, omega-3, CoQ10) should be taken with a meal containing fat. Water-soluble supplements (B vitamins, vitamin C) can be taken anytime. Minerals are generally best absorbed with food. Probiotics should be taken with or just before a meal. Check the product label for specific timing recommendations.

How do I know if this supplement is working?

Track your specific health goals — energy levels, sleep quality, joint comfort, digestion, mood, etc. Most supplements take 2-8 weeks for noticeable effects. For objective measurement, baseline lab tests before starting (and repeat at 3 months) provide definitive evidence. The Gabriel Score incorporates clinical evidence for expected outcomes.

Supplement information is provided for education and is not a substitute for personalized medical advice. Supplements are not intended to diagnose, treat, cure or prevent disease. Read the current product label before use.

Klaire Labs/SFI Health - Thera-B, 60 Capsules