Source of Life

4.8 (381 reviews)

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Supplement Ingredients
Ingredients	Amount Per Serving
Vitamin A Vitamin A	3,000 mcg RAE
beta carotene Vitamin A	-
Vitamin C Vitamin C	500 mg
ascorbic acid Vitamin C	-
Vitamin E Vitamin E	40 mg
d-alpha tocopheryl acetate Vitamin E	-
Zinc Zinc	15 mg
aspartate L-Aspartic Acid	-
ARA-Larix	250 mg
arabinogalactan	-
Larix occidentalis extract Western Larch	-
Oliceutic-20®	75 mg
Olea europaea leaf Olive	-
Olea europaea fruit	-
standardized for 20% oleuropein	15 mg
with 10 additional standardized constituents	-
andrographis (Andrographis paniculata aerial extract) Andrographis	50 mg
standardized 50% andrographolides	25 mg
echinacea	50 mg
Echinacea angustifolia root Echinacea	-
rhizome	-
standardized for 4% echinacosides	2 mg
elderberry Elderberry	50 mg
Sambucus nigra fruit Elderberry	-
standardized for 30% flavonoids	15 mg
Lactobacillus acidophilus Lactobacillus acidophilus La-14	1 mg

Ingredient Research

Vitamin C
- HighReduced Pain7 studies
- ModerateReduced Interleukin-6 Levels6 studies
- ModerateReduced Systolic Blood Pressure4 studies
Vitamin E
- ModerateReduced Aspartate Aminotransferase Level5 studies
- ModerateReduced Alanine Aminotransferase Level4 studies
- ModerateReduced Pain3 studies
Zinc
- LowReduced Zinc Level3 studies
Olive
- LowReduced Triglyceride Levels3 studies
- LowImproved Quality of Life3 studies
Lactobacillus acidophilus La-14
- Very lowReduced Inflammation3 studies

How this product's ingredient doses compare to doses studied in research.

Vitamin C500 mg
Studies used 12–1,200 mg/day (median 250) across 15 studies
In typical studied range
Vitamin E40 mg
Studies used 5–1,200 mg/day (median 300) across 10 studies
Low end of studied doses
Form mismatch: this product uses Alpha-Tocopherol. Most research support uses α-Te (1 study).
Zinc15 mg
Studies used 10–100 mg/day (median 55) across 2 studies
Low end of studied doses

Ingredient pairs in this product that have synthesised research evidence together.

Low evidenceVitamin E + Vitamin Cfor Reduced Pain· 3 studies
Across 3 studies, all reported beneficial effects of the Vitamin E and Vitamin C combination on pain reduction, with effect sizes ranging from small to moderate and all findings statistically significant. Compared to Vitamin C alone (moderate evidence, small effect), the combination shows a similar directional benefit but the limited number of studies precludes a definitive comparison. The median study duration was 60 days (reported in 1 of 3 studies). No form data were reported for either substance.

Provides comprehensive daily nutrition with a full spectrum of essential vitamins and minerals.
Boosts immune system with Vitamin C, Zinc, Echinacea, and Elderberry, helping you stay healthy.
Supports eye health with 3000 mcg RAE of Vitamin A, crucial for maintaining good vision.
Promotes heart health with the antioxidant properties of Vitamin E.
Enhances digestive health with Lactobacillus acidophilus, a beneficial probiotic.
Includes ARA-Larix for potential immune support and overall well-being.
Features Oliceutic-20® standardized for 20% oleuropein to support antioxidant health.
Contains Andrographis and echinacea extracts, known for their immune-enhancing effects.
Elderberry extract standardized for 30% flavonoids supports better health through antioxidant action.
Gluten-Free and Vegetarian formula, ensuring suitability for various dietary preferences.
NaturesPlus proprietary formulation ensures quality and consistency in every tablet.