Usage: Our 1.18 oz serum ampule is enough for multiple usage. After using the ampule keep the collector inserted in bottle. You can use this booster serum with micro needling derma roller and pen. Absorption: When it is used with derma roller it absorbs deep in your skin and give you brightening and soothing effect. You will feel comfortable and relaxed after applying our ampule on your face skin. Economical product: Do not waste money on expensive skin care treatments and therapies. Our Serum is economical and will shows multiple results including fresh and smooth skin. Aesthetic look: Our Skin care serum makes your skin look attractive and enhance the aesthetic of your face and you will be prominent from others. Made in South Korea: Our product is made in South Korea and 100 percent cruelty free. No animal is harmed for its production also it is not tested on animals.   Our 1.18 fl.oz facial care serum is best known for its quality and quantity. It is beneficial for many skin-related treatments. Save your money and time by using our economic package of skincare serum. It absorbs into your skin to provide significant results. Your skin will be smooth and clean and you will look healthy and young. For maximum results, use this serum with a skin pen which will help the serum to be absorbed more efficiently in your skin.Made in South Korea:Our product is made in South Korea and free of cruelty. No animal is harmed for the manufacturing of our product and also it is not tested on animals.How to use:a) Pull out the cap making a pop soundb) Insert the collector into the bottle opening and hold the bottle upside down until the collector contains enough ampulec) Take out the collector and apply the ampule over the treatment area How to store:After using the ampule keep the collector inserted in the bottle. In case the collector has been polluted clean it before inserting it in the bottle. Expiration is stated on the box, once opened use within stated time period and store in the fridge or in Cold Storage Area.Caution:This product is not intended to replace qualified medical diagnosis or treatment, nor they intended to cure any disease.This amazing microneedling serum can be used with Derma pen treatment technology, ensuring excellent absorption of nutrients for maximum benefits.