Life Extension Youthful Woman 40+ with B-Complex supplement bottle
Life Extension

Youthful Woman 40+ with B-Complex Review

What We Researched
9 active ingredients analyzed · 10 inactive ingredients decoded · 4 brand certifications checked · Last updated: Aug 2026
96
Product Score Excellent
87
Brand Score Good

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Thiamine (as Thiamine Hydrochloride, Vitamin B1) 10 mg 833%
Riboflavin (as Riboflavin 5-Phosphate, Vitamin B2) 5 mg 385%
Niacin (as Niacinamide) 35 mg NE 219%
Vitamin B6 (as Pyridoxal 5-Phosphate) 20 mg 1176%
Folate (as L-5-Methyltetrahydrofolate) 1360 mcg DFE 340%
Vitamin B12 (as Methylcobalamin) 300 mcg 12500%
Biotin 1000 mcg 3333%
Pantothenic Acid (as D-Calcium Pantothenate) 50 mg 1000%
ERr 731 (as Siberian Rhubarb Root Extract) 4 mg
Bioavailability Very Good

Absorption Rating

  • Thiamine (as Thiamine Hydrochloride, Vitamin B1) Fair
  • Riboflavin (as Riboflavin 5-Phosphate, Vitamin B2) Good
  • Niacin (as Niacinamide) Good
  • Vitamin B6 (as Pyridoxal 5-Phosphate) Fair
  • Folate (as L-5-Methyltetrahydrofolate) Good
  • Vitamin B12 (as Methylcobalamin) Good
  • Biotin Good
  • Pantothenic Acid (as D-Calcium Pantothenate) Good
  • ERr 731 (as Siberian Rhubarb Root Extract) Good
Other Ingredients Excellent

Fillers & Additives

  • Dicalcium Phosphate
  • Microcrystalline Cellulose
  • Croscarmellose Sodium
  • Silica
  • Stearic Acid
  • Stearate
  • Ethylcellulose
  • Sodium Alginate
  • Medium Chain Triglyceride
  • Oleic Acid
Efficacy Excellent

Dosage Analysis

  • Thiamine (as Thiamine Hydrochloride, Vitamin B1) 10 mg Effective
  • Riboflavin (as Riboflavin 5-Phosphate, Vitamin B2) 5 mg Effective
  • Niacin (as Niacinamide) 35 mg NE Effective
  • Vitamin B6 (as Pyridoxal 5-Phosphate) 20 mg Effective
  • Folate (as L-5-Methyltetrahydrofolate) 1360 mcg DFE High
  • Vitamin B12 (as Methylcobalamin) 300 mcg Effective
  • Biotin 1000 mcg Effective
  • Pantothenic Acid (as D-Calcium Pantothenate) 50 mg Effective
  • ERr 731 (as Siberian Rhubarb Root Extract) 4 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Thiamine (as Thiamine Hydrochloride, Vitamin B1) 10 mg 833%
Riboflavin (as Riboflavin 5-Phosphate, Vitamin B2) 5 mg 385%
Niacin (as Niacinamide) 35 mg NE 219%
Vitamin B6 (as Pyridoxal 5-Phosphate) 20 mg 1176%
Folate (as L-5-Methyltetrahydrofolate) 1360 mcg DFE 340%
Vitamin B12 (as Methylcobalamin) 300 mcg 12500%
Biotin 1000 mcg 3333%
Pantothenic Acid (as D-Calcium Pantothenate) 50 mg 1000%
ERr 731 (as Siberian Rhubarb Root Extract) 4 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Dicalcium Phosphate Safe

Serves as both a filler and a supplemental source of calcium and phosphorus.

Microcrystalline Cellulose Safe

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

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Stearate Unknown
Ethylcellulose Generally_safe

It is used as a coating to control the release of supplement ingredients.

Sodium Alginate Safe

It is used as a thickening agent and stabilizer.

Medium Chain Triglyceride Unknown
Oleic Acid Safe
Brand Trust Report
Life Extension

Founded 1980 · Fort Lauderdale, Florida, USA · 700 products · lifeextension.com

Certifications

4 certifications
Consumerlab Verified Source
Fda Gmp Inspections Verified Source
Nsf Gmp Verified Source
NSF Certified Verified

Transparency

4 claims
Third Party Testing Claim — Verified Source
Coa Availability — Verified Source
Testing Lab Disclosure — Claimed

Violation History

3 incidents
Prop 65 Lead2018-04-13Source
Fda Warning Making drug claims for dietary supplements, suggesting they can treat, mitigate, or prevent diseases such as breast cancer and Alzheimer's.2017-02-01Source
Fda Warning Letter FDA Warning LetterSource
Related Supplements
Frequently Asked Questions
Is Life Extension Youthful Woman 40+ with B-Complex a good supplement?

Life Extension Youthful Woman 40+ with B-Complex received a product quality score of 96/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 9 active ingredients with 30 servings per container. Of the 10 inactive ingredients, 7 are rated safe and 0 are flagged for review. 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 Youthful Woman 40+ with B-Complex?

Life Extension Youthful Woman 40+ with B-Complex contains 9 active ingredients: Thiamine (as Thiamine Hydrochloride, Vitamin B1) (10 mg), Riboflavin (as Riboflavin 5-Phosphate, Vitamin B2) (5 mg), Niacin (as Niacinamide) (35 mg NE), Vitamin B6 (as Pyridoxal 5-Phosphate) (20 mg), Folate (as L-5-Methyltetrahydrofolate) (1360 mcg DFE), Vitamin B12 (as Methylcobalamin) (300 mcg), and 3 more. Notable high-dose ingredients include Thiamine at 833% DV, Riboflavin at 385% DV, Niacin at 219% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Life Extension Youthful Woman 40+ with B-Complex safe to take?

Life Extension Youthful Woman 40+ with B-Complex 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 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.

How much vitamin d3 should i take daily?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

What does vitamin d do?

This is an important question for supplement consumers. The dietary supplement industry is largely self-regulated, which means product quality, ingredient transparency, and safety practices vary significantly between brands and products. The most reliable way to evaluate any supplement is to check for third-party testing certifications, review the full ingredient list and dosages, and research the brand's regulatory track record. GoodSupp's database of over 150,000 analyzed products provides independent quality scores, ingredient safety ratings, and brand trust reports to help you make evidence-based decisions.

How much vitamin d3 per day for a woman?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

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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 — read our methodology. 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.