Ziaja Pineapple Caffeine. The concentrated, energizing serum Ziaja Pineapple Caffeine instantly gives your skin energy. Thanks to its rich formula, your skin will be perfectly hydrated, revitalized, and pleasantly scented. The benefits of the Ziaja Pineapple Caffeine facial serum include: an ultra-light gel texture that feels pleasant on the skin and absorbs quickly, revitalizes the skin, provides moisture, smooths and firms the skin, and leaves a fresh pineapple scent. 98% natural origin.