Swanson Full Spectrum Holy Basil Leaf Review - For Improved Overall Health Holy Basil Updated March, 2024
Final Thoughts

Overall Score 60%

Swanson Full Spectrum Holy Basil Leaf Review

Swanson Full Spectrum Holy Basil Leaf is an herbal supplement that claims to be an effective natural antidote to stress. It uses the natural healing properties of the Holy Basil or Tulsi plant to provide a healthier alternative to anti-stress pharmaceutical drugs which may have unwanted side effects.

Ayurvedic healers have known about the many health benefits that the Holy Basil or Tulsi plant offers for thousands of years. It is even revered as a sacred plant and known as ‘The Incomparable One’ because of its healing properties.

Clinical research has also proven that certain active ingredients in Holy Basil leaf extract can significantly affect how our bodies react to stress. Test subjects who took regular doses of Holy Basil extract experienced less symptoms of stress in only a few short weeks.

So let’s take a closer look and see if Swanson Full Spectrum Holy Basil Leaf can actually live up to its claims.


Before trying out any new supplement or medication, it’s important to check out what it’s actually made of. While many herbal supplements claim to be all-natural and pure, some still contain fillers and additives that are unnecessary. Let’s see what Swanson Full Spectrum Holy Basil Leaf has to offer.

Each veggie capsule contains:

  • 400mg Holy Basil Leaf extract
  • Gelatin
  • Microcrystalline cellulose
  • Silica
  • Magnesium stearate

Though the back of the bottle indicates each serving has 800mg of Holy Basil Leaf extract, we can clearly see that the suggested serving size is 2 capsules. This means that each capsule effectively contains 400mg of leaf extract. However, the extract has not been standardized to contain a known amount of important active ingredients like Ursolic acid.

This supplement also contains a lot of extra fillers like silica and Magnesium stearate, among many others, which don’t really offer any health benefits.


The manufacturer recommends taking two vegetable capsules twice a day. This is already a very high dose, since most other Holy Basil supplements typically recommend a maximum of two capsules daily.

Holy Basil extracts are considered to be very safe, so there’s no reason to believe that using Swanson Full Spectrum Holy Basil Leaf supplements on a regular basis could result in any unwanted side effects.


Swanson Full Spectrum Holy Basil Leaf has a list price of $9.49. One bottle with 120 capsules can last an entire month or even more following the manufacturer’s recommended dose. The Swanson online store also offers this Holy Basil supplement for as low as $5.29 when it’s on sale.


Swanson offers a no-risk guarantee that lasts for up to 12 months. The company will even shoulder return shipping costs.

Conclusion Of Our Swanson Full Spectrum Holy Basil Leaf Review

Swanson Full Spectrum Holy Basil Leaf looks like it could be an effective treatment for stress with its high Holy Basil extract content of 400mg. However, it does not specifically list how much Ursolic acid you can expect to find in every capsule.

Reviewed & delivered by our panel of experts at Reviewy.