BioStacks
Best for
Ingredients (7)
Saffron Flower Extract
100%Dose
88.5 mg
Target
14–30 mg
Form
—
L-Theanine
100%Dose
100 mg
Target
100–250 mg
Form
—
BioPerine Black Pepper Extract
100%Dose
5 mg
Target
5–20 mg
Form
—
Cardamom Seed Extract
1%Dose
50 mg
Target
5000–15000 mg
Form
—
Magnesium Oxide
Amount not found
Other Ingredients (5)
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
PhospholipidsCarrier
Naturally occurring phospholipids (primarily phosphatidylcholine) used to form liposomal encapsulation for nutrient delivery
PhospholipidsCarrier
Naturally occurring phospholipids (primarily phosphatidylcholine) used to form liposomal encapsulation for nutrient delivery
Sunflower LecithinEmulsifier
Non-GMO, non-allergenic emulsifier derived from sunflower seeds
How to Take It
Best taken in the evening
The Theanine in it is what pulls this toward the evening. Black Pepper Extract is easier on the stomach taken with food.
With food
On the label
Take 1 capsule daily, or as directed by your healthcare professional.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$39.99
Pricier than 80% of 122 theanine 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. clinical 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.