I would highly recommend this excellent thread conditioner for hand embroidery and cross stitch projects.
Thread Magic thread conditioner
Bead Buddy Thread Magic is a type of wax used in jewellery making to coat beading thread and improve its strength, flexibility, and resistance to
Thread Magic
Bead Buddy Thread Magic Thread Conditioner
Thread Conditioner and How to Use it - The Jolly Jabber Quilting Blog
Beading Tools — beady delights
1 Ounce Bar Beeswax Thread Strengthening Conditioner for Beads/Quilting/Crafting
Thread Magic Bead Buddy Round Thread Conditioner, DIY Jewelry Bead Supply
Thread Magic Ultimate Thread Conditioner
Sewing wax : Thread Magic
Bead Buddy - Thread Magic - Thread Conditioner
Thread Magic, Notions