If you've been meaning to test out one of Lush's 15 face masks [1] or have a favourite that you want to stock up on, now is your chance. The brand [2] is giving away free — yes, free — fresh face masks on Sunday, Aug. 11 with zero strings attached.

To get your sample, stop by a Lush location on Aug. 11 and pick one out that you've been meaning to try. Then, an associate will help you slather it onto your face. Not only will you get an in-store facial, you'll also walk away with a sample of your own with no purchase necessary.

The deal is in honour of the brand's "National Face Mask Day," which it is also celebrating with a special contest. To be entered to win $500 worth of Lush products, simply post a selfie of yourself in the mask with the hashtag "#NationalFaceMaskDay."

If you want to indulge in Lush's relaxing masks but don't know where to begin, check out some of our favourite ones, ahead.

Lush Mask of Magnaminty

Smearing on the Lush Mask of Magnaminty Face and Body [3] ($15) will deeply cleanse your skin, soothe dry spots, and make you say "ahhh" with its cooling effect.

Lush Fomo Jelly Face Mask

Lush Fomo Jelly Face Mask [4] ($14) is inspired by brand cofounder Mo Constantine, who invented the frickin' bath bomb back in 1989. It contains soothing ingredients like calamine, kaolin, rose, and neroli, and is ideal for sensitive skin.

Lush Cup O’ Coffee Mask

The Lush Cup O' Coffee Face and Body Mask [5] ($23) gently exfoliates skin using finely ground coffee while smelling just like the energizing, morning beverage.

Just to Clarify Jelly Face Mask

The bouncy Just to Clarify Jelly Face Mask [6] ($14) uses citrus enzymes from papaya, orange, and grapefruit to gently exfoliate skin and leave you glowing.

Lush BB Seaweed Mask

Those with sensitive skin will love the Lush BB Seaweed Fresh Face Mask [7] ($10), which gently exfoliates and soothes redness and irritation using aloe vera and rose.