HarkePlus RemindPro – FOS + L-theanine is a patented nutraceutical compound containing fructooligosaccharides and L-theanine that has been proven to boost total memory by up to 10.1% within just 30-days use.
HarkePlus RemindPro is the combination of two plant-derived natural products for human memory and cognition; fructooligosaccharides (FOS) from Morinda officinalis and L-theanine from Camellia sinensis. A study has shown that this synergistic complex has been clinically proven to boost memory and cognition. The compound can be used in supplements, as well as in food and beverage applications.
What are fructooligosaccharides?
Fructooligosaccharides are non-digestible short chain carbohydrates which occur naturally in many plants. Because fructooligosaccharides are non-digestible they reach the large intestine intact where they can deliver a prebiotic effect.
What is L-theanine?
L-theanine is an amino acid found in green tea. It is commonly used in supplements and has benefits reported for cognitive health, increased focus and a reduction in stress and anxiety.
Benefits of HarkePlus RemindPro
A study has shown benefits in the following areas:
- Improvement in associated learning
- Improvement in graphic memory
- Improvement in memory quotient
- Improvement in recognition of meaningless image
- Improvement in direct memory
- Improvement in portrait retrieval
Supporting Study Results
The results below show how administration of FOS and L-theanine enhanced adult memory in a clinical trial. ** indicates p < .01 versus before trial, ## indicates p < .01 versus placebo group.

Figure (a) shows the measurement of selected aspects of memory in the treatment group before and after trial, whilst figure (b) shows the measurement of selected aspects of memory in the placebo group before and after trial. Figure (c) shows measurement of selected aspects of memory in-between placebo and treatment group after trial, whilst (d) shows total memory and memory quotient between placebo and treatment group after trial.
Source: Li, Y., Jiang, Y., Zhang, Z., Loake, V. I. P., Bao, X., & Loake, G. J. (2024). Improvement of both human and animal memory by synergy between fructooligosaccharide and L- theanine function establishing a safe and effective food supplement. Food Science & Nutrition, 00, 1–15. https://doi.org/10.1002/fsn3.4145
Find Out More
If you’d like more information about HarkePlus RemindPro, please contact Shilpa Mistry, Head of Pharma UK & Ireland.






