Smart Caffeine with L-Theanine Review
Product Analysis
Transparency Excellent
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| L-Theanine | 200 mg | † |
| Caffeine (as Green Coffee) | 100 mg | † |
Bioavailability Excellent
Absorption Rating
- L-Theanine Good
- Caffeine (as Green Coffee) Good
Other Ingredients Excellent
Fillers & Additives
- Hypromellose
- Silica
- Microcrystalline Cellulose
- Ascorbyl Palmitate
Efficacy Excellent
Dosage Analysis
- L-Theanine 200 mg Effective
- Caffeine (as Green Coffee) 100 mg Effective
Supplement Facts
| Ingredient | Amount | % Daily Value |
|---|---|---|
| L-Theanine | 200 mg | † |
| Caffeine (as Green Coffee) | 100 mg | † |
Other Ingredients
Certifications
1 certification
Transparency
4 claims
Violation History
2 incidents
Is NS Natural Stacks Smart Caffeine with L-Theanine a good supplement?
NS Natural Stacks Smart Caffeine with L-Theanine received a product quality score of 100/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 2 active ingredients with 60 servings per container. All 4 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, NS Natural Stacks, holds a brand trust score of 95/100.
What are the ingredients in NS Natural Stacks Smart Caffeine with L-Theanine?
NS Natural Stacks Smart Caffeine with L-Theanine contains 2 active ingredients: L-Theanine (200 mg), Caffeine (as Green Coffee) (100 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.
Is NS Natural Stacks Smart Caffeine with L-Theanine safe to take?
GoodSupp reviewed the inactive-ingredient data available for NS Natural Stacks Smart Caffeine with L-Theanine. All 4 inactive ingredients — including capsule materials, fillers, and binders — are currently classified as safe in GoodSupp's ingredient reference data. This label analysis cannot determine whether the product is safe for a particular person, and source labels may change. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.
Is NS Natural Stacks a trustworthy supplement brand?
NS Natural Stacks receives a brand trust score of 95/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2013 and headquartered in Seattle, WA, United States, the company offers 33 products in their lineup. Note: NS Natural Stacks has 2 historical regulatory incidents on record, which are factored into the trust score.
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