Our Science-Backed Research Papers

This is every study we reference across foryoudaily. Each one has been checked against the US National Library of Medicine — PubMed and PMC — and links to the source so you can read it yourself. Where a paper's own authors describe the evidence as limited, we say so here rather than leaving it out.

How to read this page

Three distinctions matter when you are judging any supplement's evidence, including ours:

  • A trial is not a review. A randomised controlled trial tests something on people. A review summarises other people's trials. Both are useful; only one is evidence of an effect. We label which is which below.
  • A study of an ingredient is not a study of a product. Research on Bacopa monnieri is not research on our capsule. We formulate with studied ingredients at studied doses — that is a reasonable basis, and it is not the same as having trialled the finished bottle.
  • Population matters. A result in patients with a diagnosed condition does not automatically transfer to a healthy adult. Where a study was done in a specific group, we state it.

Every product page lists its actives by name and dose. No proprietary blends, so you can match any ingredient below to what is in the bottle.

Skin Hydration — Sea Buckthorn & Omega-7

  • The impact of sea buckthorn oil fatty acids on human health. Review.
    Solà Marsiñach M, Cuenca AP. Lipids in Health and Disease, 2019;18(1):145.
    Examines the fatty acid profile of sea buckthorn (Hippophae rhamnoides) oil and its clinical applications. The authors state that supporting human studies are limited, and that most findings come from isolated fatty acids rather than whole sea buckthorn oil.
    Read the full paper (PMC6589177) · PMID 31228942
  • Effects of oral supplementation and topical application of supercritical CO2 extracted sea buckthorn oil on skin ageing of female subjects. Trial — not indexed in PubMed.
    Yang B, et al. Journal of Applied Cosmetology, 2009;27(1):13–25.
    We reference this study in our skin articles, and we are direct about its limits: it is published in a trade cosmetics journal that PubMed does not index, so it carries no PMID, and it combined an oral arm with a separate topical arm. Figures circulated from it are not independently verifiable, so we do not quote them.

See what is in Skin Hydration →

Focus — Brahmi, Shankhpushpi & Ashwagandha

  • The chronic effects of an extract of Bacopa monniera (Brahmi) on cognitive function in healthy human subjects. Randomised controlled trial.
    Stough C, et al. Psychopharmacology (Berl), 2001. Improved learning rate and memory consolidation, maximal at 12 weeks.
    PMID 11498727
  • Chronic effects of Brahmi (Bacopa monnieri) on human memory. Randomised controlled trial.
    Roodenrys S, et al. Neuropsychopharmacology, 2002;27(2):279–81. n=76, ages 40–65, three months. Significant effect on retention of new information. The authors note the rate of learning itself was unaffected.
    PMID 12093601
  • Randomized controlled trial of standardized Bacopa monniera extract in age-associated memory impairment. Randomised controlled trial.
    Indian Journal of Psychiatry, 2006. Improvements in logical memory, mental control and paired associate learning by week 12.
    PMC2915594
  • Meta-analysis of randomized controlled trials on cognitive effects of Bacopa monnieri extract. Meta-analysis.
    Journal of Ethnopharmacology, 2014. Pooled analysis reporting improvements in attention speed.
    PMID 24252493
  • A prospective, randomized double-blind, placebo-controlled study of safety and efficacy of a high-concentration full-spectrum extract of ashwagandha root in reducing stress and anxiety in adults. Randomised controlled trial.
    Chandrasekhar K, et al. Indian Journal of Psychological Medicine, 2012;34(3):255–62. A 27.9% reduction in serum cortisol from baseline in the ashwagandha group, against 7.9% on placebo.
    PMID 23439798 · PMC3573577
  • Efficacy and Safety of Ashwagandha (Withania somnifera) Root Extract in Improving Memory and Cognitive Functions. Randomised controlled trial.
    Choudhary D, Bhattacharyya S, Bose S. Journal of Dietary Supplements, 2017. 300mg twice daily over 8 weeks; improvements in immediate and general memory, executive function, attention and information-processing speed.
    PMID 28471731

See what is in Focus →

All Day Energy — Red Korean Ginseng

  • Safety and antifatigue effect of Korean Red Ginseng capsule: a randomized, double-blind and placebo-controlled clinical trial. Randomised controlled trial.
    Journal of Ginseng Research, 2022. 110 healthy adults; significant reductions in blood lactate and creatine phosphokinase against placebo.
    PMC9270647
  • Single doses of Panax ginseng (G115) reduce blood glucose levels and improve cognitive performance during sustained mental activity. Randomised controlled trial.
    Reay JL, Kennedy DO, Scholey AB. Journal of Psychopharmacology, 2005.
    PMID 15982990
  • Effects of Panax ginseng, consumed with and without glucose, on blood glucose levels and cognitive performance during sustained mentally demanding tasks. Randomised controlled trial.
    Reay JL, et al. Journal of Psychopharmacology, 2006.
    PMID 16401645
  • Korean red ginseng (Panax ginseng) improves glucose and insulin regulation in well-controlled, type 2 diabetes. Randomised controlled trial — in people with type 2 diabetes.
    Vuksan V, Sung MK, Sievenpiper JL, Stavro PM. Nutrition, Metabolism and Cardiovascular Diseases, 2008. Insulin sensitivity index improved by 33% over 12 weeks. Conducted in a diabetic population, not healthy adults.
    PMID 16860976

See what is in All Day Energy →

Background — sleep, stress and nutrition

These are cited in our articles for context on why fatigue, stress and sleep affect focus, energy and skin. They are not studies of our products or our ingredients.

  • The cumulative cost of additional wakefulness: dose-response effects on neurobehavioral functions and sleep physiology. Controlled study. Van Dongen HP, Maislin G, Mullington JM, Dinges DF. Sleep, 2003. PMID 12683469
  • Free cortisol levels after awakening: a reliable biological marker for the assessment of adrenocortical activity. Observational. Pruessner JC, et al. Life Sciences, 1997. Describes the cortisol rise in the first 30 minutes after waking. PMID 9416776
  • Exposure to room light before bedtime suppresses melatonin onset and shortens melatonin duration in humans. Controlled study. Gooley JJ, et al. Journal of Clinical Endocrinology & Metabolism, 2011. PMID 21193540
  • The relationship of autonomic imbalance, heart rate variability and cardiovascular disease risk factors. Review. Thayer JF, Yamamoto SS, Brosschot JF. International Journal of Cardiology, 2010. PMID 19910061
  • How prevalent is vitamin B12 deficiency among vegetarians? Review. Pawlak R, et al. Nutrition Reviews, 2013. PMID 23356638
  • Sleep Control, GPCRs, and Glucose Metabolism. Review. Tsuneki H, Sasaoka T, Sakurai T. Trends in Endocrinology and Metabolism, 2016. PMID 27461005
  • An Isolated Complex V Inefficiency and Dysregulated Mitochondrial Function in Immortalized Lymphocytes from ME/CFS Patients. Laboratory study — cells from ME/CFS patients. Missailidis D, et al. International Journal of Molecular Sciences, 2020. Not generalised to the wider population. PMID 32041178

How we maintain this list

Every identifier on this page resolves to a real, retrievable paper. We check citations against PubMed and PMC rather than carrying them over from supplier literature or marketing material, and we remove any claim we cannot trace to a source you can open yourself. If a figure is not independently verifiable, we do not publish it — even when it would flatter the product.

If you find a citation here that does not check out, tell us at hello@foryoudaily.co and we will correct it.

Important

Research on an ingredient is not a claim about our finished product. Several papers above are reviews rather than trials, and some were conducted in specific patient populations. foryoudaily products are food supplements registered with FSSAI. They are not intended to diagnose, treat, cure or prevent any disease. Individual results vary. If you are pregnant, breastfeeding, taking prescription medication or managing a medical condition, consult a qualified healthcare professional before starting any supplement.