‘Max Strength’ Fly Repellent, a TRIPLE STRENGTH natural formula to complement our existing NATURAL fly repellent ranges. ‘Max Strength’ is our strongest totally NATURAL fly repellent ever. Still enhancing the coats natural shine and remaining invisible upon application, ‘Max Strength’ upholds all of the existing ranges high standards. Contains citronella oil. HSE approved as safe and effective and containing no FEI listed banned substances. ‘Max Strength’ gives the ultimate protection against all flying and biting insects also aiding itch related problems.