ZZKOKO Calligraphy Ink Bottle vs Thornton’s Luxury Goods Premium Fountain Pen Ink

No sources that do their own in-depth testing have considered the ZZKOKO Calligraphy Ink Bottle to be a good enough purchase for it to earn a spot in their Pen Ink roundups, which is typically a bad sign.

As for the Thornton’s Luxury Goods Premium Fountain Pen Ink - it wasn't considered to be a good enough purchase to earn a spot in any roundups conducted by sources that perform objective hands-on testing, which typically indicates that a product isn't worth its asking price.

As a last step, we wanted to do a head-to-head ZZKOKO Calligraphy Ink Bottle vs. Thornton’s Luxury Goods Premium Fountain Pen Ink comparison of their review performance but, unfortunately, weren't able to find any review ratings on either product.