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Source Naturals

Screen Time Stamina

Item | SN954

  • Supports vision health

  • With holy basil, DMAE, l-theanine and more

  • Delivers 5,000 IU of vitamin D3 per serving

60 Tabs

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Supplement Facts

Serving Size 3 Tablets

Servings Per Container 20

Amount Per Serving   % Daily Value
Calories 10  
Total Carbohydrate 2 g 1%*
Dietary Fiber 1 g 4%*
Vitamin A (as beta-carotene 5,000 IU 100%
2,500 IU & palmitate 2,500 IU)    
Vitamin D-3 (As cholecalciferol) 5,000 IU 1,250%
Sodium 10 mg <1%
Rhodiola Root Extract 640 mg
Ashwagandha Root Extract 500 mg
Gotu Kola Aerial Parts Extract 400 mg
Asian Ginseng Root Extract 200 mg
Green Tea Leaf Extract (50% caffeine) 200 mg
N-Acetyl Cysteine 100 mg
L-Theanine 100 mg
Turmeric Rhizome Extract 80 mg
N-Acetyl L-Tyrosine 75 mg
DMAE (as bitartrate) 60 mg
Ginkgo Leaf Extract (24% flavone 60 mg
glycosides & 6% terpene lactones)    
Taurine 50 mg
Holy Basil Leaf Extract 50 mg
Schisandra Fruit 30 mg
Natural trans-Resveratrol 30 mg
(from Polygonum cuspidatum root extract)    
Eleuthero Root Extract 20 mg
Vinpocetine 15 mg
Lutein 6 mg
Zeaxanthin 1 mg
Huperzine A 80 mcg
(from Huperzia serrata leaf extract)    

*Percent Daily Values (%DV) are based on a 2,000 calorie diet.

†Daily value not established.

Other ingredients: microcrystalline cellulose, maltodextrin, hydroxypropyl cellulose, stearic acid, dibasic calcium phosphate, modified cellulose gum, magnesium stearate, and silica.

Contains soy.

Suggested use: 3 tablets daily with food.

WARNING: Too much caffeine may cause nervousness, irritability, sleeplessness, and occasionally, rapid heartbeat. Not recommended for use by children under 18 years of age. If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product. Consult your physician before using this product if you have any medical condition, or are taking any medications, in particular MAO inhibitor antidepressants.


Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.

  • Supports vision health

  • With holy basil, DMAE, l-theanine and more

  • Delivers 5,000 IU of vitamin D3 per serving

Screen Time Stamina by Source Naturals is designed to promote vision health, physical endurance and more. This formula features lutein and zeaxanthin, two members of the carotenoid family that are revered for promoting healthy eye function. Screen Time Stamina also features beneficial herbs such as eleuthero root, holy basil, ashwagandha and more.

Terms and Ingredient Definitions

Shipping Weight: .24 lbs

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

MSRP: $23.98

For our website and catalog, the MSRP is the "Manufacturer's Suggested Retail Price." The MSRP is understood to mean the price at which a manufacturer will recommend a retailer sell a product for in stores, on the internet, or in catalogs. The MSRP of National brand items are dictated to Swanson by each manufacturer. For Swanson brand items, the MSRP is calculated based on a varying percentage above the product's base price.

Disclaimer: Product reviews are provided for informational purposes only. The information or opinions expressed therein are solely those of the contributors and do not necessarily represent those of Swanson Health Products and its employees. Please read full product reviews disclaimer.

Swanson Health started in 1969 in Fargo, ND with a mission to offer pure and potent health products at a great value. Over 50 years later, we continue to innovate science-backed vitamins and supplements, delivering wellness solutions that help people live simply healthier together, and find vitality at any age. Click here to learn more about us.

For over 50 years, Swanson Health's research and development team has delivered science-backed health and wellness products to people around the world. Our innovation is guided by clinical research, scientific consensus, emerging research and usage traditions, creating products that help you find vitality at any age. At Swanson, we don't hide our science behind proprietary formulas — we believe in easy-to-read, transparent labelling. What's printed on our labels, is exactly what you'll find in our products.

Swanson Health's purity and potency testing begins with our ingredient sourcing, continues through manufacturing, and goes beyond when a product hits the shelf. Our testing exceeds industry standards, ensuring each product meets our quality guarantees for purity and potency. Swanson facilities are Good Manufacturing Practices (GMP) certified, and we voluntarily participate in third-party, independent laboratory testing. With Swanson, you can be sure you're getting the most pure and potent health products at a great value. Click here to learn more about our quality standards.


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