Caffeine & Sleep
Tea

Caffeine in Guayusa Tea

90mg
per 8 oz
≈ 1 coffee≈ 1 Red Bull23% of FDA daily max

Is that a lot?

Guayusa Tea is 23% of the FDA’s recommended daily maximum, in a single 8 oz.

Green tea
28 mg
Espresso
63 mg
Red Bull
80 mg
Guayusa Tea
90 mg
Coffee
95 mg
FDA daily max · 400mg
Before bed

When can I drink Guayusa Tea and still sleep?

Your Guayusa Tea cutoff
You drink it at
Bedtime
Guayusa Tea · 90 mg · assuming an average ~5 h half-life
At bedtime
30 mg
close to optimal
Latest safe Guayusa Tea: 6:46 PM

How much caffeine is in Guayusa Tea?

Guayusa, an Amazonian holly tea, is high in caffeine at about 90 mg per cup, nudging right up to coffee strength. Its smooth, clean energy makes it a popular natural alternative to coffee.

ServingCaffeineSugar
8 oz90 mg0 g

Amazonian holly tea; high caffeine ~70–110 mg.

Will Guayusa Tea affect your sleep?

From 90 mg, guayusa takes around four to five hours to fall under 50 mg, so an afternoon cup can still be active in the evening. Keep it to the morning if you want it well cleared by bedtime.

Source: Published assays (range)

Related drinks

Guayusa Tea & sleep — FAQ

It can, at about 90 mg guayusa is nearly coffee-strength, so a late-afternoon or evening cup may still sit near the 50 mg threshold at bedtime.

Guayusa Tea has 90 mg per 8 oz — about 23% of the FDA’s 400 mg daily maximum for healthy adults. That’s roughly 1 cup of coffee.

It depends on your bedtime and how fast you clear caffeine. Use the calculator above to see when Guayusa Tea drops below the ~50 mg “ok to sleep” threshold for your bedtime.

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