Research shows that 66% of women have avoided kissing a man because he had facial hair. Now, Gillette is asking couples across America to help determine if stubble could be the trouble.

Philadelphia couples are invited to kiss in-person – with and without stubble – to uncover which kiss is best: a kiss with stubble or smooth shaven skin.

Couples should arrive with stubble – first conducting an introductory interview, then kissing with stubble. Men will then shave and the couple will kiss again. A short follow-up survey will be conducted to determine which is truly more kissable. Prizes will be awarded to all who pucker up: free Gillette swag for the guys and a COVERGIRL LipPerfection Jumbo Gloss Balm for the ladies!

Anyone unable to attend in-person can conduct the experiment online at kissandtellus.com. National results will be announced on Valentine’s Day.