Luxuri Neck Firming Double Chin Serum is a Skincare Product, that Improves Neck Skin's Elasticity & Restores Firmness. Improves the Jaw Line Shape. Reduces the appearance of  Double Chin, and Extra Fat Deposits. It delivers instant Neck Skin Tightening. The key ingredients of Luxuri Neck Firming Double Chin Serum are Hyaluronic Acid, Glutathione, Vitamin C, and Retinol. The properties of which have been shared below.