Green tea

Camellia sinensis is a shrub native to Asia whose leaves are used to produce different varieties of tea.

Depending on their processing method, the leaves give rise to several types of tea. Green tea retains the highest number of natural active compounds due to limited oxidation after harvest.

At Renact, we use Camellia sinensis primarily for its natural richness in L-theanine and antioxidant polyphenols.

Catechins

Catechins are naturally occurring polyphenols found in green tea.

They are particularly studied for their antioxidant properties and their ability to protect cells against damage related to oxidative stress.

EGCG (Epigallocatechin Gallate)

EGCG is the most abundant and most studied catechin in green tea.

Numerous studies are investigating its potential role in:

cell protection;

brain aging;

cognitive health;

defense against oxidative stress.

L-Theanine

L-theanine is an amino acid naturally found in tea leaves.

It is particularly valued for its unique action on the brain: it promotes a state of relaxation while maintaining alertness and concentration.

This property explains its frequent use in formulas dedicated to mental performance and stress management.

Supports concentration and learning

L-theanine is studied for its interest in several cognitive functions:

attention;

concentration;

learning;

intellectual performance.

Some research suggests that it could promote a mental state conducive to intellectual work and memorization.

Promotes a state of alert relaxation

Unlike sedatives, L-theanine does not induce drowsiness.

It is known to promote the production of alpha waves in the brain, associated with a state often described as attentive relaxation or mental calm without loss of vigilance.

This characteristic explains its interest for people who want to remain performing while limiting the effects of stress.

Protects cells against oxidative stress

Catechins and EGCG are powerful antioxidants.

They help neutralize free radicals, unstable molecules involved in:

cellular aging;

inflammatory phenomena;

certain age-related alterations of cognitive functions.

As the brain is particularly sensitive to oxidative stress, this property is of great interest to neuroscience research.

Supports cognitive health

Research suggests that green tea polyphenols could contribute to maintaining cognitive functions and preserving intellectual capacities over time.

This is one of the reasons why green tea is often integrated into modern nootropic formulas.

In Brain Reboost

In Brain Reboost, Camellia sinensis notably provides polyphenols and EGCG.

It acts synergistically with:

Lion's Mane;

Bacopa Monnieri;

Citicoline;

Phosphatidylserine.

The goal is to support:

✓ concentration

✓ mental alertness

✓ cognitive performance

✓ protection of nerve cells

In Deep Rest

In Deep Rest, Camellia sinensis is used for its natural L-theanine content.

Combined with Passionflower, Valerian, and Melatonin, it helps promote a state of mental relaxation conducive to falling asleep and recovery.

Camellia sinensis is one of the most studied plants in the world.

Thousands of scientific publications have explored its potential benefits in areas such as:

cognitive functions;

brain health;

oxidative stress;

cellular aging;

mental performance.

Its effects are mainly attributed to its abundance of polyphenols, EGCG, and L-theanine.

Health claims awaiting evaluation by EFSA

To date, no official health claim for Camellia sinensis regarding cognitive functions has been validated by EFSA.

However, several claims are currently awaiting evaluation:

Concentration and cognitive functions

Improves concentration.

Supports learning.

Contributes to mental performance.

Antioxidant protection

Natural source of antioxidants.

Helps protect cells against oxidative stress.

Helps fight premature aging linked to free radicals.

These claims reflect currently available scientific data and the traditional use of green tea.

Camellia sinensis, a natural source of L-theanine, catechins, and EGCG, is now one of the most studied ingredients in the fields of cognitive performance and brain protection.

Thanks to its ability to promote concentration, support a state of calm attentiveness, and protect cells against oxidative stress, it holds an important place in Renact's Brain Reboost and Deep Rest formulas.

A natural active ingredient that helps the brain remain effective, focused, and resilient in the face of daily challenges.