Q+A Zinc PCA Facial Serum is a blemish control spot treatment, that can be used daily or as needed for acne related issues. Enriched with key ingredient Zinc PCA, this is a salt based active for oily skin, that controls redness while balancing the oil levels on the skin. Reishi and Shiitake Mushrooms are native to Japan and not only great to eat in your diet, but a fab addition to your skincare regime for anti-ageing properties. Vegetable Collagen in another ingredient that reduces the appearance of wrinkles, resulting in plump and more youthful, clear skin!