Our Research

The science behind every formula

We only use ingredients that have been studied in published, peer-reviewed research. Below you'll find the key studies behind our core ingredients — written in plain English, with full references.

GMP Certified Peer-Reviewed Made in UK 100% Transparent

The studies listed below are published in recognised scientific journals and indexed on PubMed, the world's leading medical research database. We reference ingredient-level research — the same evidence used by regulatory bodies to authorise health claims.

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Creatine Monohydrate

Creapure® grade — 5g per serving

UK Authorised Claim
Authorised health claim: "Creatine increases physical performance in successive bursts of short-term, high-intensity exercise." (EU Regulation No 432/2012)

Creatine is one of the most researched supplements in sports science. It helps your muscles produce energy more quickly during intense exercise — which is why regulators have formally approved the health claim above. It is safe, well-tolerated and effective at the doses we use.

Key studies

Effects of creatine monohydrate timing on resistance training adaptations and body composition after 8 weeks in male and female collegiate athletes

Frontiers in Sports and Active Living, 2022 — Randomised controlled trial

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Creatine Supplementation Beyond Athletics: Benefits for Women, Vegans, and Clinical Populations — A Narrative Review

Nutrients / PubMed Central, 2025 — Narrative review

View on PubMed →
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Ashwagandha KSM-66®

Full-spectrum root extract — 400mg per serving

Ashwagandha is an adaptogenic herb used in traditional medicine for thousands of years. Modern clinical research shows that the KSM-66® extract — the same grade we use — can support the body's normal stress response. It is not approved as a health claim under UK regulation, but the research below is published in peer-reviewed journals and indexed on PubMed.

Key studies

Adaptogenic and Anxiolytic Effects of Ashwagandha Root Extract in Healthy Adults: A Double-blind, Randomized, Placebo-controlled Clinical Study

Medicine (Baltimore), 2019 — Double-blind RCT, 60 participants

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Effects of Ashwagandha Supplements on Cortisol, Stress, and Anxiety Levels in Adults: A Systematic Review and Meta-Analysis

PMC / Nutrients, 2025 — Systematic review of 15 RCTs, 873 patients

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Magnesium Complex

Glycinate + Malate + Taurate — 387mg elemental per serving

UK Authorised Claim
Authorised health claims: "Magnesium contributes to a reduction of tiredness and fatigue." • "Magnesium contributes to normal muscle function." • "Magnesium contributes to normal psychological function." (EU Regulation No 432/2012)

Magnesium is involved in over 300 processes in the body. Many people do not get enough from diet alone. We use three forms — glycinate, malate and taurate — because each is absorbed differently, giving broader coverage. These are forms used in the clinical research below.

Key studies

Magnesium Bisglycinate Supplementation in Healthy Adults Reporting Poor Sleep: A Randomized, Placebo-Controlled Trial

Nature and Science of Sleep, 2025 — DOI: 10.2147/NSS.S524348

View on PubMed →
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Vitamin D3 + K2

D3 4000IU + K2 MK-7 100µg — liposomal drops

UK Authorised Claim
Authorised health claims: "Vitamin D contributes to the normal function of the immune system." • "Vitamin D contributes to the maintenance of normal bones and teeth." (EU Regulation No 432/2012)

Vitamin D is produced by the skin when exposed to sunlight — but in the UK, many people are deficient, particularly in autumn and winter. Public Health England recommends that everyone consider a vitamin D supplement during these months. We combine it with K2, which helps direct calcium to bones rather than arteries.

Key studies

Infections and Autoimmunity — The Immune System and Vitamin D: A Systematic Review

Nutrients, 2023 — DOI: 10.3390/nu15173842 — Systematic review following PRISMA guidelines

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Public Health England: Vitamin D — advice for all age groups

NHS / Public Health England — Official UK government guidance

View NHS guidance →
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Omega-3 (EPA & DHA)

Fish oil / Krill oil — 1000mg per serving

UK Authorised Claim
Authorised health claims: "DHA contributes to the maintenance of normal brain function." • "EPA and DHA contribute to the normal function of the heart." (EU Regulation No 432/2012)

EPA and DHA are omega-3 fatty acids found in oily fish. They are essential fats, meaning the body cannot make them — they must come from diet or supplements. The British Heart Foundation and NHS both recognise the role of omega-3 in supporting heart health.

Key studies

Effects of Omega-3 Polyunsaturated Fatty Acids on Brain Functions: A Systematic Review

PMC / Cureus, 2022 — PMC ID: PMC9641984

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Effect of omega-3 fatty acids on cardiovascular outcomes: A systematic review and meta-analysis

EClinicalMedicine, 2021 — DOI: 10.1016/j.eclinm.2021.100997 — 38 RCTs, 149,051 participants

View on PubMed →

Important: The studies referenced above are ingredient-level research published in peer-reviewed journals. They do not represent claims about specific activGen products. All health claims displayed on this website are authorised under retained EU Regulation No 432/2012 and apply only to the relevant ingredient at the required daily intake. This information is for educational purposes and does not constitute medical advice. Always consult a healthcare professional before starting any supplement.

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