Keep your Science Clinical Resurfacing System performing at its peak with this resurfacing tips and filter kit. Page 1 Keep your Science Clinical Resurfacing System performing at its peak with this resurfacing tips and filter kit. The diamond tips need to be cleaned regularly and replaced after 20 to 25 uses. The filters should be replaced every two to four uses. From Dr. Denese. Includes: Two diamond tips 20 filters For use with the Dr. Denese Skin Science Clinical Resurfacing System, not included Fine: for sensitive skin Regular: for normal skin Made in China Two diamond tips 20 filters For use with the Dr. Denese Skin Science Clinical Resurfacing System, not included Fine: for sensitive skin Regular: for normal skin Made in China