DR. GRANDEL Active Ingredients Ampoules Retinol - 3 x 3ml PcsDR. GRANDEL Active Ingredients Ampoules Retinol 3x3 ml Pcs Wrinkle reducing active ingredient concentrate in the ampoule. The dr Grandel active ingredient ampoules Retinol are a special night care product with an anti aging effect. Even pronounced wrinkles and lines should be significantly reduced. Specially encapsulated vitamin A promises a clear lifting effect and is said to be well tolerated by the skin. The individual ampoules are each freshly