L-theanine reduces stress and anxiety by modulating neurotransmitters such as glutamate, dopamine and GABA,?

Preservation strength high, could irritate sensitive skin users

Typical usage rates suggest this leans toward stronger side

Better safe than spoiled if batch stored long-term

Consider reducing slightly unless extreme contamination risk expected

Stability improves, but diminishing returns past certain concentration

Most formulators use less for balanced preservation effectiveness

If water exposure frequent, stronger preservation makes more sense

Evaluate pH compatibility, Germall Plus works best optimized

Shelf life likely extended, though maybe unnecessarily high

Skin tolerance varies, test before regular application usage

Could dial back without compromising antimicrobial protection much

Environment matters, humid conditions justify stronger preservative ratios

Not dangerous, just potentially more than required amount

Batch size small, easier to maintain sterility anyway

Overengineering preservation common among beginners learning formulation basics