Hydrox Adeno B12

ModerateUnderdosed

What the lab found

Contained only 68.1% of listed vitamin B12 (1,362 mcg instead of 2,000 mcg).

Failure type · Underdosed

Active ingredient measured significantly below the labeled amount — not therapeutic.

Source

Independent lab testing, 2024

Safer alternative

Nature Made B12 1,000 mcg ($0.19/softgel, verified)

Is your supplement on this list?

Instant safety check against 373 failed products plus 177 drug interactions.

More products that failed

Nature Made

Super B

Overdosed · High

New Chapter

Fermented Coenzyme B Complex

Underdosed · Moderate

Swanson

P-5-P (Pyridoxal 5 Phosphate)

Underdosed · Moderate

Pure Encapsulations

B12 Liquid

Mislabeled · High

Lab data sourced from independent third-party testing reports. Educational only — Avelor does not provide medical advice.

Failed Products

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B Vitamins · Seeking Health

Hydrox Adeno B12

ModerateUnderdosed

What the lab found

Contained only 68.1% of listed vitamin B12 (1,362 mcg instead of 2,000 mcg).

Failure type · Underdosed

Active ingredient measured significantly below the labeled amount — not therapeutic.

Source

Independent lab testing, 2024

Safer alternative

Nature Made B12 1,000 mcg ($0.19/softgel, verified)

Is your supplement on this list?

Instant safety check against 373 failed products plus 177 drug interactions.

More products that failed

Nature Made

Super B

Overdosed · High

New Chapter

Fermented Coenzyme B Complex

Underdosed · Moderate

Swanson

P-5-P (Pyridoxal 5 Phosphate)

Underdosed · Moderate

Pure Encapsulations

B12 Liquid

Mislabeled · High

Lab data sourced from independent third-party testing reports. Educational only — Avelor does not provide medical advice.