Haven’t used it yet but
the tubeless sealant actually works so I’m sure this will help prolong its useful life. I got a small puncture on the sidewall (tough spot for any sealant) which didn’t completely seal right away but after inflating and spinning the tire to make sure the fibers had a chance to cover the hole it has sealed - I’ve had similar punctures that wouldn’t seal with inferior sealants.
Keep it Fresh
This refresher is required to for monthly additions as the sealant works so well it will clog the valve stem. It's well worth the effort.