Futurebiotics Stressassist®, L-Theanine Stress Complex, 60 Vegetarian Capsules supplement bottle
Futurebiotics

Stressassist®, L-Theanine Stress Complex, 60 Vegetarian Capsules

What We Researched
13 active ingredients analyzed · 5 inactive ingredients decoded · 3 brand certifications checked · 4 retailers compared · Last updated: Mar 2026
92
Product Score Excellent
75
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Thiamin (Vitamin B1) (as Thiamin HCl) 25 mg 2,083%
Riboflavin (Vitamin B2) 25 mg 1,923%
Niacin (as Niacinamide) 100 mg NE 625%
Vitamin B6 (as Pyridoxine Hydrochloride) 25 mg 1,471%
Folate (400 mcg Folic Acid) 666 mcg DFE 167%
Vitamin B12 (as Methylcobalamin) 100 mcg 4,167%
Biotin 300 mcg 1,000%
Pantothenic Acid (as D-Calcium Pantothenate) 250 mg 5,000%
Zinc (as Zinc Picolinate) 15 mg 136%
Suntheanine® L-Theanine 100 mg
Sensoril® Ashwagandha root and leaf extract 50 mg
Proprietary Stress Adaptogenic Compound:Eleuthero root, Ashwagandha herb, Rhodiola rosea root, Inositol, PABA (Para-aminobenzoic acid), 300 mg
Futurebiotics BioAccelerators™Bioperine® Black Pepper Extract (Piper nigrum), Ginger root extract (Zingiber officinale), Trikatu (Long Pepper Fruit (Piper longum), Black Pepper Seed (Piper nigrum) & Ginger Root), Digezyme®, (Amylase, Protease, & Lipase), Lactospore® (Bacillus coagulans) 23 mg
Bioavailability Very Good

Absorption Rating

  • Thiamin (Vitamin B1) (as Thiamin HCl) Fair
  • Riboflavin (Vitamin B2) Good
  • Niacin (as Niacinamide) Good
  • Vitamin B6 (as Pyridoxine Hydrochloride) Fair
  • Folate (400 mcg Folic Acid) Fair
  • Vitamin B12 (as Methylcobalamin) Good
  • Biotin Good
  • Pantothenic Acid (as D-Calcium Pantothenate) Good
  • Zinc (as Zinc Picolinate) Good
  • Suntheanine® L-Theanine Good
  • Sensoril® Ashwagandha root and leaf extract Good
  • Proprietary Stress Adaptogenic Compound:Eleuthero root, Ashwagandha herb, Rhodiola rosea root, Inositol, PABA (Para-aminobenzoic acid), Poor
  • Futurebiotics BioAccelerators™Bioperine® Black Pepper Extract (Piper nigrum), Ginger root extract (Zingiber officinale), Trikatu (Long Pepper Fruit (Piper longum), Black Pepper Seed (Piper nigrum) & Ginger Root), Digezyme®, (Amylase, Protease, & Lipase), Lactospore® (Bacillus coagulans) Good
Other Ingredients Excellent

Fillers & Additives

  • Modified Cellulose (Vegetarian Capsule)
  • Microcrystalline Cellulose
  • Stearic Acid
  • Magnesium Stearate
  • Peppermint Oil
Efficacy Very Good

Dosage Analysis

  • Thiamin (Vitamin B1) (as Thiamin HCl) 25 mg Effective
  • Riboflavin (Vitamin B2) 25 mg Effective
  • Niacin (as Niacinamide) 100 mg NE High
  • Vitamin B6 (as Pyridoxine Hydrochloride) 25 mg Effective
  • Folate (400 mcg Folic Acid) 666 mcg DFE Effective
  • Vitamin B12 (as Methylcobalamin) 100 mcg Effective
  • Biotin 300 mcg Effective
  • Pantothenic Acid (as D-Calcium Pantothenate) 250 mg Effective
  • Zinc (as Zinc Picolinate) 15 mg Effective
  • Suntheanine® L-Theanine 100 mg Effective
  • Sensoril® Ashwagandha root and leaf extract 50 mg Under-dosed
  • Proprietary Stress Adaptogenic Compound:Eleuthero root, Ashwagandha herb, Rhodiola rosea root, Inositol, PABA (Para-aminobenzoic acid), 300 mg Effective
  • Futurebiotics BioAccelerators™Bioperine® Black Pepper Extract (Piper nigrum), Ginger root extract (Zingiber officinale), Trikatu (Long Pepper Fruit (Piper longum), Black Pepper Seed (Piper nigrum) & Ginger Root), Digezyme®, (Amylase, Protease, & Lipase), Lactospore® (Bacillus coagulans) 23 mg High

Supplement Facts

Ingredient Amount % Daily Value
Thiamin (Vitamin B1) (as Thiamin HCl) 25 mg 2,083%
Riboflavin (Vitamin B2) 25 mg 1,923%
Niacin (as Niacinamide) 100 mg NE 625%
Vitamin B6 (as Pyridoxine Hydrochloride) 25 mg 1,471%
Folate (400 mcg Folic Acid) 666 mcg DFE 167%
Vitamin B12 (as Methylcobalamin) 100 mcg 4,167%
Biotin 300 mcg 1,000%
Pantothenic Acid (as D-Calcium Pantothenate) 250 mg 5,000%
Zinc (as Zinc Picolinate) 15 mg 136%
Suntheanine® L-Theanine 100 mg
Sensoril® Ashwagandha root and leaf extract 50 mg
Proprietary Stress Adaptogenic Compound:Eleuthero root, Ashwagandha herb, Rhodiola rosea root, Inositol, PABA (Para-aminobenzoic acid), 300 mg
Futurebiotics BioAccelerators™Bioperine® Black Pepper Extract (Piper nigrum), Ginger root extract (Zingiber officinale), Trikatu (Long Pepper Fruit (Piper longum), Black Pepper Seed (Piper nigrum) & Ginger Root), Digezyme®, (Amylase, Protease, & Lipase), Lactospore® (Bacillus coagulans) 23 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.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Peppermint Oil Generally_safe

It is used as a flavoring agent or to provide a cooling sensation.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$22$19$16$14$11 Mar 12 $19.97$13.00
iHerb
Vitacost

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
Related Supplements
Frequently Asked Questions
Is Futurebiotics Stressassist®, L-Theanine Stress Complex a good supplement?

Futurebiotics Stressassist®, L-Theanine Stress Complex, 60 Vegetarian Capsules received a product quality score of 92/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 13 active ingredients with 30 servings per container. Of the 5 inactive ingredients, 4 are rated safe and 0 are flagged for review. 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 Stressassist®, L-Theanine Stress Complex?

Futurebiotics Stressassist®, L-Theanine Stress Complex contains 13 active ingredients: Thiamin (Vitamin B1) (as Thiamin HCl) (25 mg), Riboflavin (Vitamin B2) (25 mg), Niacin (as Niacinamide) (100 mg NE), Vitamin B6 (as Pyridoxine Hydrochloride) (25 mg), Folate (400 mcg Folic Acid) (666 mcg DFE), Vitamin B12 (as Methylcobalamin) (100 mcg), and 7 more. Notable high-dose ingredients include Thiamin at 2,083% DV, Riboflavin at 1,923% DV, Niacin at 625% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Futurebiotics Stressassist®, L-Theanine Stress Complex safe to take?

Futurebiotics Stressassist®, L-Theanine Stress Complex, 60 Vegetarian Capsules has been analyzed for ingredient safety across all its components. 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.