As we grow older, we may grow wiser, but we can also experience age-related memory impairment (ARMI). ARMI is relatively common1 and should not be confused with Alzheimer’s or other dementia, while ARMI is simply mild memory problems associated with normal aging (e.g. “Where did I put my keys?”). Even so, the memory loss and cognitive slowing associated with ARMI can interfere with our daily routines.2 In fact, according to a national survey, worries over retaining mental sharpness with age was the number two health concern among consumers (second only to worries about continuing with normal activities with age).3

So what can we do to help maintain mental sharpness with aging? Aside from eating a healthy diet and getting regular exercise (which is good advice for everybody in all age groups), there are some very specific nutraceuticals (i.e. vitamins, herbs, amino acids), which have been shown to be effective for just this purpose. These include Bacopa monnieri leaf extract, Panax ginseng root extract, Rhodiola rosea root extract, natural caffeine and L-theanine, folic acid and vitamin B12.

Bacopa monnieri leaf extract
The leaves of the Bacopa monnieri plant have been used for centuries in the traditional East Indian system of healthcare (i.e. Ayurveda) for purposes of promoting “healthy longevity, and strengthening life, brain, and mind.”4 While that is certainly impressive, it is even more impressive that several modern, human clinical studies have been conducted showing that supplementation with Bacopa helped:

  • Improve occasional, age-related absentmindedness.
  • Promote a healthy memory.
  • Improve some measures of delayed recall.
  • Promote cognitive function.
Percentage Increase in Total Memory Score

Most of these studies5,6,7,8,9,10,11 found that daily supplementation with 300 mg of Bacopa monnieri leaf extract (standardized for 50 percent total bacosides), provided significant benefits by week 12—although progressive benefits in Total Memory Score were also seen during week four and eight as well.12

It should also be noted that these studies were conducted in men and women who were at least 40 years old, and in most cases more than 55 years old. That means that you’re more likely to experience similar benefits if you’re middle-aged and older, rather than if you’re in your 20s or 30s.

If you’re wondering how Bacopa works, research13 suggests that it helps to maintain healthy levels of acetylcholine, a compound your body makes that works in your brain to help facilitate memory, learning ability and cognitive performance.

Panax ginseng root extract
Panax ginseng root, or ginseng for short, is a traditional Chinese herb, which has been used for thousands of years for various aspects of healthcare. It is also one of the most widely-researched herbs in modern science with over 5,000 published studies. Ginseng belongs to a category of herbs known as adaptogens. Adaptogens are herbs that help stabilize physiological processes and promote homeostasis (i.e. stable, healthy functioning of the body), especially in the case of stress and fatigue. This property was seen in two human clinical studies14,15 examining the effects of ginseng on mental performance. The results demonstrated that 200 mg of ginseng root extract daily:

  • Improved speed of mental performance within 60 minutes.
  • Enhance performance of mental arithmetic within 60 minutes.
  • Reduce feelings of mental fatigue within 60 minutes.
  • Quickly reduced feelings of mental fatigue during sustained mental activity.
  • Quickly improved some measures of mental performance.

While many nutraceuticals may take weeks to work, these studies found that ginseng root extract provided beneficial results in as little as 60 minutes.

Rhodiola rosea root extract
Like ginseng, Rhodiola rosea root is an adaptogen. This plant has been used for centuries in the traditional systems of healthcare throughout Russia, Scandinavia, and other countries where it was used to increase physical endurance, work productivity, longevity, and to treat fatigue, mood and promote a healthy nervous system.16 Currently, there are over 500 studies on Rhodiola demonstrating the value of this plant. The reason for its inclusion in Ageless Memory is that human clinical research17,18,19 shows that supplementation with Rhodiola:

  • Improved capacity for mental work during stress.
  • Supports healthy cognitive function during stress.
  • Reduced fatigue during stress.

These benefits were seen when 370 mg of Rhodiola root extract was used daily, and when it was standardized for 3 percent salidroside and 1 percent rosavins—key compounds in Rhodiola. This standardization is particularly important since most Rhodiola extracts have the opposite standardization: 1 percent salidroside and 3 percent rosavins. Consequently, products with this opposite standardization are not providing the correct balance of Rhodiola compounds used in these cited studies.

Natural Caffeine and L-Theanine
Black tea leaf extract provides natural caffeine as well as the amino acid L-theanine. This is an important distinction because not all sources of caffeine are natural, and not all sources provide L-theanine as well. Consider that if you buy one of those popular energy shots that are supposed to last a few hours, they contain caffeine anhydrous. That’s a synthetic form of caffeine. And while coffee certainly contains natural caffeine, we all know about the jittery effect on your nerves if you get too much—and some of the freshly brewed coffee you get from popular coffee houses can contain hundreds of milligrams of caffeine. Tea, on the other hand, also provides L-theanine, which has a calming effect. That’s likely the reason why drinking tea isn’t typically associated with caffeine jitters like coffee—it contains L-theanine, which helps sooth over-stimulated nerves. Now to be clear, the amount of caffeine used in research with L-theanine is only 50 mg—that’s the amount of caffeine you’d typically find in one-half cup of moderately brewed coffee. Furthermore, 100 mg of L-theanine was used alongside the caffeine. When this combination was used together, human clinical research20,21,22,23,24,25 has shown that supplementation:

  • Helped maintain focus.
  • Helped with mental flexibility, the ability to shift attention from one task to another and efficiently adapt to different situations.
  • Helped improve focus on the information while filtering out other stimuli.
  • Helped improve focus during cognitively demanding tasks.
  • Helped improve speed and accuracy of cognitive performance.
  • Helped improve mental alertness.

Folic Acid and Vitamin B12
Folic acid and vitamin B12 are both critical B vitamins that perform a variety of functions in the human body. Among those functions are the roles they play in cognitive performance. For example, in one study26 older adults were supplemented with 400 mcg of folic acid and 100 mcg of vitamin B12 daily. The results showed that this combination:

  • Supported healthy cognitive function in older adults.
  • Promoted healthy memory performance in older adults.

Furthermore, vitamin B12 deficiency can result in memory loss, and supplementation can help prevent it.27,28 Since vitamin B12 deficiency is estimated to affect 10 –15 percent of individuals over the age of 60,29 supplementation is certainly worthwhile.

What to Expect When Taking Ageless Memory
It should be noted that the aforementioned nutraceuticals tend to provide their effects at different times, so even if you use all of them your results will be progressive rather than instantaneous. Essentially, here’s how it will likely work (although everyone is different and results and timing may differ for you as well):

Nutraceutical Effects on Memory and Cognitive Function


  1. Hanninen T, Koivisto K, Reinikainen KJ, Helkala EL, Soininen H, Mykkänen L, Laakso M, Riekkinen PJ. Prevalence of ageing-associated cognitive decline in an elderly population. Age Ageing. 1996 May;25(3):201–5.
  2. Hedden T, Gabrieli JDE. Insights into the ageing mind: a view from cognitive neuroscience. Nat Rev Neurosci. 2004;5:87–96.
  3. Sloan AE, Hut CA. Reading the Compass: Up-and-Coming Market Trends. Nutraceuticals World. October 1, 2013. Retrieved November 9, 2015 from
  4. Engels G, Brinckmann J. Bacopa. HerbalGram. 2011;91:1–4.
  5. Morgan A, Stevens J. Does Bacopa monnieri Improve Memory Performance in Older Persons? Results of a Randomized, Placebo-Controlled, Double-Blind Trial. J Altern Complem Med. 2010; 16(7): 753–9.
  6. Calabrese C, Gregory WL, Leo M, Kraemer D, Bone K, Oken B. Effects of a Standardized Bacopa monnieri Extract on Cognitive Performance, Anxiety, and Depression in the Elderly: A Randomized, Double-Blind, Placebo-Controlled Trial. J Altern Complem Med. 2008;14(6):707–13.
  7. Roodenrys S, Booth D, Bulzomi S, Phipps A, Micallef C, Smoker J. Chronic effects of Brahmi (Bacopa monnieri) on human memory. Neuropsychopharmacology. 2002 Aug;27(2):279–81.
  8. Stough C, Lloyd J, Clarke J, Downey LA, Hutchison CW, Rodgers T, Nathan PJ. The chronic effects of an extract of Bacopa monniera (Brahmi) on cognitive function in healthy human subjects. Psychopharmacology (Berl). 2001 Aug;156(4):481–4.
  9. Stough C, Downey LA, Lloyd J, Silber B, Redman S, Hutchison C, Wesnes K, Nathan PJ. Examining the nootropic effects of a special extract of Bacopa monniera on human cognitive functioning: 90 day double-blind placebo-controlled randomized trial. Phytother Res. 2008 Dec;22(12):1629-34.
  10. Raghav S, Singh H, Dalal PK, Srivastava JS, Asthana OP. Randomized controlled trial of standardized Bacopa monniera extract in age-associated memory impairment. Indian J Psychiatry. 2006 Oct-Dec; 48(4): 238–42.
  11. Pase MP, Kean J, Sarris J, Neale C, Scholey AB, Stough C. The cognitive-enhancing effects of Bacopa monnieri: a systematic review of randomized, controlled human clinical trials. J Altern Complement Med. 2012 Jul;18(7):647–52.
  12. Raghav S, Singh H, Dalal PK, Srivastava JS, Asthana OP. Randomized controlled trial of standardized Bacopa monniera extract in age-associated memory impairment. Indian J Psychiatry. 2006 Oct-Dec; 48(4): 238–242.
  13. Stough C, Lloyd J, Clarke J, Downey LA, Hutchison CW, Rodgers T, Nathan PJ. The chronic effects of an extract of Bacopa monniera (Brahmi) on cognitive function in healthy human subjects. Psychopharmacology (Berl). 2001 Aug;156(4):481–4.
  14. Reay JL, Kennedy DO, Scholey AB. Single doses of Panax ginseng (G115) reduce blood glucose levels and improve cognitive performance during sustained mental activity. J Psychopharmacol. 2005 Jul;19(4):357–65.
  15. Reay JL, Kennedy DO, Scholey AB. Effects of Panax ginseng, consumed with and without glucose, on blood glucose levels and cognitive performance during sustained ‘mentally demanding’ tasks. J Psychopharmacol. 2006 Nov;20(6):771–81.
  16. Brown RP, Gerbarg PL, Ramazanov Z. Rhodiola rosea: A Phytomedicinal Overview. HerbalGram 2002; 56:40–52.
  17. Darbinyan V, Kteyan A, Panossian A, Gabrielian E, Wikman G, Wagner H. Rhodiola rosea in stress induced fatigue—a double blind cross-over study of a standardized extract SHR-5 with a repeated low-dose regimen on the mental performance of healthy physicians during night duty. Phytomedicine. 2000 Oct;7(5):365–71.
  18. Spasov AA, Wikman GK, Mandrikov VB, Mironova IA, Neumoin VV. A double-blind, placebo-controlled pilot study of the stimulating and adaptogenic effect of Rhodiola rosea SHR-5 extract on the fatigue of students caused by stress during an examination period with a repeated low-dose regimen. Phytomedicine. 2000 Apr;7(2):85–9.
  19. Shevtsov VA, Zholus BI, Shervarly VI, Vol’skij VB, Korovin YP, Khristich MP, Roslyakova NA, Wikman G. A randomized trial of two different doses of a SHR-5 Rhodiola rosea extract versus placebo and control of capacity for mental work. Phytomedicine. 2003 Mar;10(2–3):95–105.
  20. Einöther SJ, Martens VE, Rycroft JA, De Bruin EA. L-theanine and caffeine improve task switching but not intersensory attention or subjective alertness. Appetite. 2010 Apr;54(2):406–9.
  21. Kelly SP, Gomez-Ramirez M, Montesi JL, Foxe JJ. L-theanine and caffeine in combination affect human cognition as evidenced by oscillatory alpha-band activity and attention task performance. J Nutr. 2008 Aug;138(8):1572S–1577S.
  22. Foxe JJ, Morie KP, Laud PJ, Rowson MJ, de Bruin EA, Kelly SP. Assessing the effects of caffeine and theanine on the maintenance of vigilance during a sustained attention task. Neuropharmacology. 2012 Jun;62(7):2320–7.
  23. Owen GN, Parnell H, De Bruin EA, Rycroft JA. The combined effects of L-theanine and caffeine on cognitive performance and mood. Nutr Neurosci. 2008 Aug;11(4):193–8. 24. Giesbrecht T, Rycroft JA, Rowson MJ, De Bruin EA. The combination of L-theanine and caffeine improves cognitive performance and increases subjective alertness. Nutr Neurosci. 2010 Dec;13(6):283–90.
  24. De Bruin EA, Rowson MJ, Van Buren L, Rycroft JA, Owen GN. Black tea improves attention and self-reported alertness. Appetite. 2011 Apr;56(2):235–40.
  25. Walker JG, Batterham PJ, Mackinnon AJ, Jorm AF, Hickie I, Fenech M, Kljakovic M, Crisp D, Christensen H. Oral folic acid and vitamin B-12 supplementation to prevent cognitive decline in community-dwelling older adults with depressive symptoms—the Beyond Ageing Project: a randomized controlled trial. Am J Clin Nutr. 2012;95:194–203.
  26. Food and Nutrition Board, Institute of Medicine. Vitamin B12. Dietary reference intakes for thiamin, riboflavin, niacin, vitamin B6, vitamin B12, pantothenic acid, biotin, and choline. Washington, D.C.: National Academy Press; 1998:306–56.
  27. Healton EB, Savage DG, Brust JC, Garrett TJ, Lindenbaum J. Neurologic aspects of cobalamin deficiency. Medicine (Baltimore). 1991;70(4): 229–45. [ABSTRACT ONLY]
  28. Baik HW, Russell RM. Vitamin B12 deficiency in the elderly. Annu Rev Nutr. 1999;19:357–77. [ABSTRACT ONLY]

Gene Bruno, MS, MHS

Gene Bruno is the Dean of Academics and Professor of Dietary Supplement Science for Huntington College of Health Sciences (a nationally accredited distance learning college offering diplomas and degrees in nutrition and other health science related subjects. Gene has two undergraduate Diplomas in Nutrition, a Bachelor’s in Nutrition, a Master’s in Nutrition, a Graduate Diploma in Herbal Medicine, and a Master’s in Herbal Medicine. As a 32 year veteran of the Dietary Supplement industry, Gene has educated and trained natural product retailers and health care professionals, has researched and formulated natural products for dozens of dietary supplement companies, and has written articles on nutrition, herbal medicine, nutraceuticals and integrative health issues for trade, consumer magazines, and peer-reviewed publications. Gene's latest book, A Guide to Complimentary Treatments for Diabetes, is available on, and other fine retailers.