Dr. Ohhira's Reg'Activ™, Immune & Vitality™, 60 Capsules supplement bottle
Dr. Ohhira's

Reg'Activ™, Immune & Vitality™, 60 Capsules

What We Researched
8 active ingredients analyzed · 1 brand certification checked · 2 retailers compared · Last updated: Mar 2026
79
Product Score Fair
72
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin C (as ascorbic acid) 40 mg 45%
Vitamin D3 (plant sourced) (1000 IU) 25 mcg 125%
Thiamin (as thiamin HCl Vitamin B1) 2 mg 167%
Riboflavin (Vitamin B2) 2 mg 154%
Niacin (Vitamin B3) 24 mg 150%
Vitamin B6 (as pyridoxine HCl) 2 mg 118%
Lactobacillus fermentum ME-3 (equivalent 4 billion** lactic acid bacteria) 40 mg *
Lactobacillus brevis KP08 (equivalent 1 billion** lactic acid bacteria) 100 mg *
Bioavailability Very Good

Absorption Rating

  • Vitamin C (as ascorbic acid) Fair
  • Vitamin D3 (plant sourced) (1000 IU) Good
  • Thiamin (as thiamin HCl Vitamin B1) Fair
  • Riboflavin (Vitamin B2) Good
  • Niacin (Vitamin B3) Good
  • Vitamin B6 (as pyridoxine HCl) Fair
  • Lactobacillus fermentum ME-3 (equivalent 4 billion** lactic acid bacteria) Good
  • Lactobacillus brevis KP08 (equivalent 1 billion** lactic acid bacteria) Good
Other Ingredients Fair

Fillers & Additives

No inactive ingredient data available.

Efficacy Very Good

Dosage Analysis

  • Vitamin C (as ascorbic acid) 40 mg Under-dosed
  • Vitamin D3 (plant sourced) (1000 IU) 25 mcg Effective
  • Thiamin (as thiamin HCl Vitamin B1) 2 mg Effective
  • Riboflavin (Vitamin B2) 2 mg Effective
  • Niacin (Vitamin B3) 24 mg Effective
  • Vitamin B6 (as pyridoxine HCl) 2 mg Effective
  • Lactobacillus fermentum ME-3 (equivalent 4 billion** lactic acid bacteria) 40 mg Effective
  • Lactobacillus brevis KP08 (equivalent 1 billion** lactic acid bacteria) 100 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Vitamin C (as ascorbic acid) 40 mg 45%
Vitamin D3 (plant sourced) (1000 IU) 25 mcg 125%
Thiamin (as thiamin HCl Vitamin B1) 2 mg 167%
Riboflavin (Vitamin B2) 2 mg 154%
Niacin (Vitamin B3) 24 mg 150%
Vitamin B6 (as pyridoxine HCl) 2 mg 118%
Lactobacillus fermentum ME-3 (equivalent 4 billion** lactic acid bacteria) 40 mg *
Lactobacillus brevis KP08 (equivalent 1 billion** lactic acid bacteria) 100 mg *

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$53$49$45$41$37 Mar 12 $49.95$40.00
iHerb
Vitacost

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Dr. Ohhira's

Founded 1974 · Farmers Branch, TX, United States · 8 products · drohhiraprobiotics.com/

Certifications

1 certification
Vegan Certified Verified Source

Transparency

2 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Claimed
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Frequently Asked Questions
Is Dr. Ohhira's Reg'Activ™, Immune & Vitality™ a good supplement?

Dr. Ohhira's Reg'Activ™, Immune & Vitality™, 60 Capsules received a product quality score of 79/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 8 active ingredients The manufacturer, Dr. Ohhira's, holds a brand trust score of 72/100 with 1 verified certifications including Vegan Certified.

What are the ingredients in Dr. Ohhira's Reg'Activ™, Immune & Vitality™?

Dr. Ohhira's Reg'Activ™, Immune & Vitality™ contains 8 active ingredients: Vitamin C (as ascorbic acid) (40 mg), Vitamin D3 (plant sourced) (1000 IU) (25 mcg), Thiamin (as thiamin HCl Vitamin B1) (2 mg), Riboflavin (Vitamin B2) (2 mg), Niacin (Vitamin B3) (24 mg), Vitamin B6 (as pyridoxine HCl) (2 mg), and 2 more. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Dr. Ohhira's Reg'Activ™, Immune & Vitality™ safe to take?

Dr. Ohhira's Reg'Activ™, Immune & Vitality™, 60 Capsules has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Dr. Ohhira's a trustworthy supplement brand?

Dr. Ohhira's receives a brand trust score of 72/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1974 and headquartered in Farmers Branch, TX, United States, the company offers 8 products in their lineup. They hold 1 verified certifications including Vegan Certified. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. No regulatory violations or FDA warning letters were found in our research.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.