All G-SQUARE supplements are produced by GMP certified Japanese factory.

The raw materials are natural food extracts. If you have food allergy,

please consult your doctor first before purchase the supplements

You definitely, definitely, definitely can take all three supplements together

For your reference, here is my schedule of taking supplements:

CoQ10: In the morning before work, Can reduce tiredness and feel more refreshed

Lutein & Anthocyanin: In the morning before work, Provide protection for your eyes to cope with the following long computer work

GABA: After dinner (2-3 hours before sleep), Can help fall asleep and improve sleep quality