Douglas Laboratories Vitamin B12 Formulated with Hydroxycobalamin
Brand: Douglas Laboratories · Form: LOZENGE [E0174]
Our assessment
The evidence shows that this product is a specialized form of vitamin B12, using hydroxycobalamin. Hydroxycobalamin is one of the natural forms of vitamin B12, and data on its specific benefits are limited compared to the more common cyanocobalamin. Data not available on the specific dosage or intended use from the provided information.
How it works
Hydroxycobalamin is a precursor to the active coenzyme forms of vitamin B12, which are essential for nerve function, red blood cell formation, and DNA synthesis. Unlike cyanocobalamin, hydroxycobalamin has a higher affinity for binding to transport proteins in the blood, which may help maintain stable levels in the body. Data not available on specific mechanisms for this product.
Safety profile
FDA received 592,059 total adverse event reports for all supplements, but specific data for this product is not available. For the ingredient calcium, high levels can cause poor muscle tone, poor kidney function, constipation, nausea, weight loss, extreme tiredness, frequent need to urinate, and abnormal heart rhythms [NIH ODS]. Calcium can also reduce the absorption of bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
We recommend discussing this specific form of B12 with your healthcare provider, especially if you have a known B12 deficiency or absorption issue. Since this product contains hydroxycobalamin, it may be a good option for those who cannot process cyanocobalamin. Data not available on the precise dosage or strength from this label, so follow your clinician's guidance for B12 supplementation.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Douglas Laboratories |
|---|---|
| Serving Size | |
| Contents | 60.0 Lozenge(s) |
| Market Status | Off Market |
How to Read This Label
Supplement labels contain several key sections regulated by the FDA:
- Serving Size — The recommended amount per dose. Always check this — some products require multiple capsules per serving.
- Amount Per Serving — Shows the quantity of each nutrient in the product, typically in IU (International Units), mg (milligrams), or mcg (micrograms).
- % Daily Value (%DV) — Indicates how much a nutrient in a serving contributes to a daily diet. 5% DV or less is low; 20% DV or more is high.
- Other Ingredients — Lists inactive ingredients like fillers, binders, and capsule materials (e.g., gelatin, cellulose, magnesium stearate).
- Suggested Use — The manufacturer's recommended directions for taking the supplement, including timing and dosage.
Source: FDA Dietary Supplement Labeling Guide