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Ginkgo Biloba vs L-Theanine (+Can You Take Them Together?)

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Trying to decide between 2 supplements?

There’s an awful lot to consider, including benefits, drawbacks, price and more.

So I’ve gone and collected all of that info so you don’t have to!

You’re welcome 😉

Our Supplement Comparison Series continues with Ginkgo Biloba vs L-Theanine.

Let’s get to it.

What is Ginkgo Biloba?

Ginkgo Biloba is a herb that’s used to boost brain health and treat various conditions.

Although most Ginkgo Biloba supplements use leaf extracts, the seeds are often used in TCM for healing purposes.

A lot of the benefits of Ginkgo Biloba are credited to plant compounds known as flavonoids.

What is L-Theanine?

L-Theanine is an amino acid that’s renown for its sedative properties.

For most people, tea is the most common source of L-Theanine.

(Technically speaking, green tea is the most common source.)

L-Theanine is one of my favorite brain enhancing supplements as it’s safe, effective and good for you.


Benefits of Ginkgo Biloba

Ginkgo Biloba may help relieve PMS symptoms

PMS symptoms are those annoying symptoms many women face in the weeks before their period, such as:

  • Anxiety
  • Mood swings
  • Acne breakouts

If you do suffer from these symptoms, then the good news is Ginkgo Biloba may be able to help.

A study of 85 students looked at the effects of Ginkgo Biloba on PMS symptoms.

According to the results, Ginkgo Biloba supplementation reduced PMS symptoms by 23%.

Ginkgo Biloba is antioxidant-rich

Free radicals can cause oxidative stress, which is believed to play an important role in aging and age-related diseases like cancer and heart disease.

Antioxidants are powerful molecules that can neutralize free radicals, which will help reduce oxidative stress.

Ginkgo Biloba is rich in many antioxidant compounds, such as terpenoids and flavonoids.

Ginkgo Biloba may reduce Dementia symptoms

Although the research is fairly limited, Ginkgo Biloba may help slow down the rate of cognitive decline in Dementia patients.

For example, a review of 4 studies found major improvement in Dementia symptoms when Ginkgo Biloba was used for 22 – 24 weeks.

Another review of 21 studies found that Ginkgo Biloba may help improve mental function in Alzhemier’s patients.

Ginkgo Biloba may help reduce anxiety

Wanna know a shocking statistic?

Around 40 million US adults suffer from anxiety.

Interestingly, Ginkgo Biloba may help relieve anxiety symptoms.

In one study, 107 people with anxiety took either 240mg of Ginkgo Biloba, 480mg of Ginkgo Biloba, or a placebo.

The subjects who took 480mg of Ginkgo Biloba had a 45% bigger reduction in anxiety symptoms than the placebo group.

(Related reading: Does Phosphatidylserine Help With Anxiety?)

Benefits of L-Theanine

L-Theanine may help improve sleep

Out of all the aspects of a healthy lifestyle, sleep is arguably the most underappreciated one.

So over the last 12 months, I’ve tried a handful of supplements to help improve my sleep, including:

  • Holy Basil
  • L-Theanine
  • Phosphatidylserine (PS)
  • California Poppy Extract

I had the best sleep when taking either Holy Basil alongside PS or L-Theanine on its own.

(California Poppy Extract was disappointing to say the least.)

How did I know my sleep was improved when taking L-Theanine?

Well, I rate my sleep quality on 2 factors:

  • How deep my sleep is
  • How long it takes for me to fall asleep

Interestingly, L-Theanine improved both these factors for me.

(Related reading: Does California Poppy Help With Sleep?)

L-Theanine may help reduce caffeine jitters

You really can’t beat that first sip of coffee in the morning.

But every now and then, thanks to the caffeine, I feel jittery, anxious and irritable.

Well, since I’ve started taking L-Theanine alongside my morning cup of Joe, these annoying effects have virtually disappeared!

L-Theanine may improve brain function

Thanks to its brain enhancing properties, many people use L-Theanine as a nootropic.

(Nootropic is just a fancy way of saying smart drug by the way.)

It seems to help brain function by boosting your slow brain waves, which increases creativity. (Source)


Ginkgo Biloba Cost

Ginkgo Biloba is usually sold in capsules or as a liquid extract.

Typical prices for these are:

  • Capsules: $11 for 120
  • Liquid extract: $14 for 2 Oz

L-Theanine Cost

L-Theanine is generally sold in capsules or as a powder.

Here are some standard prices for these:

  • Powder: $10 for 100g
  • Capsules: $20 for 100

Side Effects

Ginkgo Biloba Side Effects

Ginkgo Biloba supplements are typically safe in healthy adults, but some people have reported the following side effects:

  • Nausea
  • Diarrhea
  • Headaches
  • Stomach upset

The following people SHOULD NOT take Ginkgo Biloba as it may cause adverse reactions:

  • People taking NSAIDS
  • People taking blood thinners
  • People taking antidepressants
  • People allergic to plants which contain Alkylphenols

L-Theanine Side Effects

Like Ginkgo Biloba, L-Theanine is generally safe to supplement with.

But those who drink a lot of tea to get their L-Theanine may notice the following side effects:

  • Nausea
  • Irritability
  • Stomach upset

These effects are believed to be caused by the caffeine in the tea, rather than L-Theanine.


My Ginkgo Biloba Recommendation: NOW Ginkgo Biloba

Click to see on Amazon


High quality. High strength. Trusted brand.

NOW Ginkgo Biloba is the real deal.

What I like about it

With a potency of 120mg per capsule, NOW Ginkgo Biloba is one of the strongest available.

Also, I’m a massive fan of NOW as a supplement company.

They’re GMP certified, which means that every single step of their manufacturing process has been analyzed for quality purposes.

This is surprisingly rare in the supplement industry, where quality greatly varies.

And the 100s of epic reviews show that this is a trusted Ginkgo Biloba supplement that’s loved and used by many other people just like you.

Potential Drawbacks

Some users have reported upset stomach after taking this product.

Check price and read more reviews of NOW Ginkgo Biloba on Amazon.

My L-Theanine Recommendation: Nootropics Depot L-Theanine Powder

Click to see on Amazon


An awesome L-Theanine powder.

Perfect for those for like the freedom to choose how much L-Theanine they want to take.

What I like about it

With each tub providing a whopping 2500 servings, just one purchase of this supplement will last you literally years.

(I don’t know about you, but I hate having to stock up on supplements every month.)

Another great feature is the fact this supplement is pure L-Theanine powder.

In other words, there are no cheap fillers or nasty additives you need to be aware of.

Just 100% L-Theanine goodness.

And as it’s a powder, you can experiment with the dosage to meet your individual needs.

(As we’re all biologically different, some will respond better to a lower dose and others will respond better to a higher dose.)

Potential Drawbacks

The fact that it’s a powder means you must taste the supplement.

But if you dislike the taste, you can easily mask it with your favorite juice or something.

No big deal!

Check price and read more reviews of Nootropics Depot L-Theanine on Amazon.

Can You Take Ginkgo Biloba And L-Theanine Together?

There’s no evidence to suggest that it’s unsafe to take Gingko Biloba and L-Theanine together.

Interestingly, there are some nootropic supplement which contain Ginkgo Biloba and L-Theanine which suggests that it’s safe to take Ginkgo Biloba and L-Theanine together.

That being said, you should always consult your medical doctor before starting a supplement regimen containing bother Ginkgo Biloba and L-Theanine.

Ginkgo Biloba vs L-Theanine: The Verdict

Thanks a ton for sticking to the end of this Ginkgo Biloba vs L-Theanine face off!

If this article has served its purpose, you should have a good idea about which of the 2 supplements you’re going to use and benefit from.

If not? Then here’s how I’d make my decision:

You might prefer Ginkgo Biloba if:

  • You want to reduce anxiety
  • You want to relieve PMS symptoms
  • You want to increase your antioxidant intake
  • You want to improve Dementia/Alzheimer’s symptoms

You might prefer L-Theanine if:

  • You want to boost creativity
  • You have sleeping problems
  • You’re a coffee fanatic who hates caffeine jitters

See you in the next one!

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