Trade Secrets is a stockfinishing product made by Michael Smart who shares a workshop space with Richard Tandy a gunsmith and director of W W Greener in the Mews at Hagley Hall.
Michael is a time served gunmaker who was responsible for finishing at W C Scott Guns he also worked with Clive Lemon of CCL stock finishes. Using both products, my choice is Trade Secrets for a far superior finish, Michael still makes all his products personally.
If you already have an oil finished stock you could try TS 95 oil which is a finish enhancer.