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Astaxanthin: Independent Evidence on Skin, UV & ‘Internal Sunscreen’ Claims

July 4, 2026July 4, 2026 by Pure City Research

Internal sunscreen? Skin moisture yes, lipid claims weak. Independent human-trial evidence, funding traced, evidence graded.

Categories Astaxanthin, Eczema & Skin Leave a comment

Nattokinase: Independent Evidence on Blood Pressure, Clots & Long-COVID

July 4, 2026July 4, 2026 by Pure City Research

Dissolves microclots? Modest BP effect, bleeding risk. Independent human-trial evidence, funding traced, evidence graded.

Categories Blood Pressure, Heart & Cardiovascular, Nattokinase Leave a comment

Myo-Inositol: Independent Evidence on PCOS, Fertility & Insulin Resistance

July 4, 2026July 4, 2026 by Pure City Research

PCOS metabolic and ovulatory benefit — guideline-endorsed. Independent human-trial evidence, funding traced, evidence graded.

Categories Diabetes & Blood Sugar, Fat Loss & Metabolism, Myo-Inositol Leave a comment

Glutathione: Independent Evidence on Skin Whitening, IV Safety & Antioxidant Claims

July 4, 2026July 4, 2026 by Pure City Research

Skin brightening from within? Oral weak, IV unsafe. Independent human-trial evidence, funding traced, evidence graded.

Categories Eczema & Skin, Glutathione Leave a comment

Bovine Colostrum: Independent Evidence on Gut, Immunity & Skin

July 4, 2026July 4, 2026 by Pure City Research

Liquid gold for immunity? Athlete URTI data, beauty claims thin. Independent human-trial evidence, funding traced, evidence graded.

Categories Bovine Colostrum, Energy & Focus, Gut & Digestion Leave a comment

Psyllium Husk: Independent Evidence on Cholesterol, Glucose & Weight

July 4, 2026July 4, 2026 by Pure City Research

Nature’s Ozempic? LDL and glucose yes — weight loss, weak. Independent human-trial evidence, funding traced, evidence graded.

Categories Diabetes & Blood Sugar, Fat Loss & Metabolism, Gut & Digestion, Heart & Cardiovascular, Psyllium Husk Leave a comment

Tongkat Ali: Independent Evidence on Testosterone, Libido & Safety

July 4, 2026July 4, 2026 by Pure City Research

Natural testosterone booster? What human trials actually show. Independent human-trial evidence, funding traced, evidence graded.

Categories Energy & Focus, Muscle Building, Stress, Anxiety & Depression, Tongkat Ali Leave a comment

Plant Protein: Pea, Soy, Rice & Blends — Independent Evidence vs Whey

July 4, 2026July 4, 2026 by Pure City Research

Pea/soy/rice/hemp — parity with whey when dose and leucine are matched. Independent human-trial evidence, funding traced, evidence graded.

Categories Diabetes & Blood Sugar, Fat Loss & Metabolism, Muscle Building, Plant Protein Leave a comment

Yeast Protein: Independent Evidence on Safety, Purines & Efficacy

July 4, 2026July 4, 2026 by Pure City Research

Single-cell vegan protein — one manufacturer-funded RCT, weak evidence. Independent human-trial evidence, funding traced, evidence graded.

Categories Gut & Digestion, Muscle Building, Yeast Protein Leave a comment

Whey Protein: Forms, Grades & Independent Evidence on Muscle, MPS & Safety

July 4, 2026July 4, 2026 by Pure City Research

WPC vs WPI vs WPH vs native — MPS dose-response and the leucine trigger. Independent human-trial evidence, funding traced, evidence graded.

Categories Diabetes & Blood Sugar, Fat Loss & Metabolism, Muscle Building, Whey Protein Leave a comment
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