We have been selling our Neatsfoot Oil for the last 40 years without any complaints. We have always made it blended because dealing with pure Neatsfoot can be a nightmare. It can turn very solid in cooler temperatures and this makes it difficult to soak reins etc in. We have used the blended Neatsfoot in our own extensive livery yard and never had a problem with dissolved stitching. For preserving leather, we could think of no better product.
We hope that this information helps
R P Newsholme