Winter Wellness Review
Product Analysis
Transparency Excellent
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| L-Cysteine | 700 mg | † |
| L-Theanine | 280 mg | † |
Bioavailability Excellent
Absorption Rating
- L-Cysteine Good
- L-Theanine Good
Other Ingredients Excellent
Fillers & Additives
- Vegetable Cellulose
- Dicalcium Phosphate
- Microcrystalline Cellulose
- Silica
- Vegetable Stearate
Efficacy Excellent
Dosage Analysis
- L-Cysteine 700 mg Effective
- L-Theanine 280 mg Effective
Supplement Facts
| Ingredient | Amount | % Daily Value |
|---|---|---|
| L-Cysteine | 700 mg | † |
| L-Theanine | 280 mg | † |
Other Ingredients
Certifications
4 certifications
Transparency
4 claims
Is Life Extension Winter Wellness a good supplement?
Life Extension Winter Wellness 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 30 servings per container. All 5 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Life Extension, holds a brand trust score of 87/100 with 4 verified certifications including Consumerlab, Fda Gmp Inspections, Nsf Gmp, NSF Certified.
What are the ingredients in Life Extension Winter Wellness?
Life Extension Winter Wellness contains 2 active ingredients: L-Cysteine (700 mg), L-Theanine (280 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.
Is Life Extension Winter Wellness safe to take?
Life Extension Winter Wellness has been analyzed for ingredient safety across all its components. All 5 inactive ingredients — including capsule materials, fillers, and binders — are rated safe based on regulatory data and published safety research. This is a clean formulation with no controversial additives. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.
Is Life Extension a trustworthy supplement brand?
Life Extension receives a brand trust score of 87/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1980 and headquartered in Fort Lauderdale, Florida, USA, the company offers 700 products in their lineup. They hold 4 verified certifications including Consumerlab, Fda Gmp Inspections, Nsf Gmp, NSF Certified. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Life Extension has 3 historical regulatory incidents on record, which are factored into the trust score.
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