BioStacks
Best for
Ingredients (9)
Folate
100%Dose
830 mcg DFE
Target
400–800 mcg
Form
Premium
Acetyl-L-Carnitine HCl
100%Dose
600 mg
Target
500–2000 mg
Form
—
Vitamin B12
100%Dose
500 mcg
Target
250–5000 mcg
Form
Premium
Vitamin B6
100%Dose
25 mg
Target
25–100 mg
Form
Premium
Niacin
100%Dose
250 mg
Target
25–500 mg
Form
Standard
Other Ingredients (4)
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Capsule ShellCapsule
Generic capsule shell where the label does not specify the material. Common materials are hypromellose (HPMC) for vegetarian capsules and gelatin for traditional capsules — both are GRAS-listed and safe. Fish gelatin and pullulan variants also exist.
How to Take It
Best taken in the morning
The Vitamin B12 in it is what pulls this toward the morning. What's in this is easier on the stomach taken with food.
With food
NAC does better on an empty stomach, but something else in this bottle needs food. Taking the whole product with a meal is the better trade — an upset stomach is why most people stop.
On the label
Directions: Take three capsules daily or as directed by your healthcare practitioner.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$76.99
Pricier than 95% of 239 energy supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.