Is the Magnesium Glycinate Powder 100% magnesium glycinate? i.e. no other ingredients

Here's the link to the product: https://nootropicsdepot.com/magnesium-glycinate-powder/

Was just wondering because sometimes I see "Other Ingredients: None" on other products, but not these ones (which is fine) -- but just curious if that's the only ingredient in the powder (no acids, added minerals, etc.)

Thanks!