Not that I know about.
However, I've been using no other conditioner but catnip rinses on my hair for the past two years and don't have a single split end any more. I used to get masses but I got them all removed through a combination of a major chop last year and S and Ding.
I'm convinced it's the catnip that has stopped any split ends re-occurring.
My hair feels stronger, is much shinier and a great deal thicker since I started using catnip.
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