For The Neck Cream, we provide 2 different formulas! Here's the full list of active ingredients:
The Neck Formula
.025% Tretinoin - 2% Niacinamide - 1% Hyaluronic Acid
The Chest formula
.01% Tretinoin - 8% Hydroquinone - 2% Niacinamide - .5% Hyaluronic Acid