Futurebiotics L-Lysine Defense™, 90 Vegetarian Capsules supplement bottle
Futurebiotics

L-Lysine Defense™, 90 Vegetarian Capsules

What We Researched
5 active ingredients analyzed · 4 inactive ingredients decoded · 3 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
80
Product Score Good
75
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin C (as Ascorbic Acid) 175 mg 194%
Zinc (as Zinc Oxide) 25 mg 227%
L-Lysine HCI 1500 mg
Olive Leaf extract 20:1(Olea europaea)(equivalent to 200 mg Olive Leaf Powder) 10 mg
Garlic Bulb extract 3:1(Allium sativum)(equivalent to 100 mg Garlic Bulb Powder) 33.3 mg
Bioavailability Good

Absorption Rating

  • Vitamin C (as Ascorbic Acid) Fair
  • Zinc (as Zinc Oxide) Poor
  • L-Lysine HCI Good
  • Olive Leaf extract 20:1(Olea europaea)(equivalent to 200 mg Olive Leaf Powder) Good
  • Garlic Bulb extract 3:1(Allium sativum)(equivalent to 100 mg Garlic Bulb Powder) Fair
Other Ingredients Excellent

Fillers & Additives

  • Modified Cellulose (Vegetarian Capsule)
  • Microcrystalline Cellulose
  • Magnesium Stearate
  • Silicon Dioxide
Efficacy Good

Dosage Analysis

  • Vitamin C (as Ascorbic Acid) 175 mg Effective
  • Zinc (as Zinc Oxide) 25 mg Effective
  • L-Lysine HCI 1500 mg Effective
  • Olive Leaf extract 20:1(Olea europaea)(equivalent to 200 mg Olive Leaf Powder) 10 mg Under-dosed
  • Garlic Bulb extract 3:1(Allium sativum)(equivalent to 100 mg Garlic Bulb Powder) 33.3 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Vitamin C (as Ascorbic Acid) 175 mg 194%
Zinc (as Zinc Oxide) 25 mg 227%
L-Lysine HCI 1500 mg
Olive Leaf extract 20:1(Olea europaea)(equivalent to 200 mg Olive Leaf Powder) 10 mg
Garlic Bulb extract 3:1(Allium sativum)(equivalent to 100 mg Garlic Bulb Powder) 33.3 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Modified Cellulose (Vegetarian Capsule) Safe

It is used as a vegetarian capsule shell material.

Microcrystalline Cellulose Safe

Adds bulk to small-dose supplements to make tablets/capsules a manageable size.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$9$8$7$6$5 Mar 12 $7.00
iHerb

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Futurebiotics

Founded 1984 · Hauppauge, New York, USA · 90 products · futurebiotics.com

Certifications

3 certifications
Consumerlab Verified Source
Fda Gmp Inspections Verified Source
Usda Organic Verified Source

Transparency

2 claims
Third Party Testing Claim — Claimed
In House Testing — Verified Source
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Frequently Asked Questions
Is Futurebiotics L-Lysine Defense™, 90 Vegetarian Capsules a good supplement?

Futurebiotics L-Lysine Defense™, 90 Vegetarian Capsules received a product quality score of 80/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 5 active ingredients with 30 servings per container. All 4 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Futurebiotics, holds a brand trust score of 75/100 with 3 verified certifications including Consumerlab, Fda Gmp Inspections, Usda Organic.

What are the ingredients in Futurebiotics L-Lysine Defense™, 90 Vegetarian Capsules?

Futurebiotics L-Lysine Defense™, 90 Vegetarian Capsules contains 5 active ingredients: Vitamin C (as Ascorbic Acid) (175 mg), Zinc (as Zinc Oxide) (25 mg), L-Lysine HCI (1500 mg), Olive Leaf extract 20:1(Olea europaea)(equivalent to 200 mg Olive Leaf Powder) (10 mg), Garlic Bulb extract 3:1(Allium sativum)(equivalent to 100 mg Garlic Bulb Powder) (33.3 mg). Notable high-dose ingredients include Zinc at 227% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Futurebiotics L-Lysine Defense™, 90 Vegetarian Capsules safe to take?

Futurebiotics L-Lysine Defense™, 90 Vegetarian Capsules has been analyzed for ingredient safety across all its components. All 4 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 Futurebiotics a trustworthy supplement brand?

Futurebiotics receives a brand trust score of 75/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1984 and headquartered in Hauppauge, New York, USA, the company offers 90 products in their lineup. They hold 3 verified certifications including Consumerlab, Fda Gmp Inspections, Usda Organic. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. No regulatory violations or FDA warning letters were found in our research.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.