Difference Between Vitamin C Serum and Cream Testers

The main difference between Vitamin C serum and cream testers lies in their texture and formulation base, which impacts their feel and how they deliver active ingredients.

• Vitamin C Serum Testers: These are typically lightweight, often liquid or gel-like formulations with a high concentration of Vitamin C. Products like Stabilized Vitamin C (Natural-C Glycol™) Serum, Vitamin C 12% Serum, and 16% Vitamin C Brightening Serum are examples. Serums are designed for rapid absorption to deliver active ingredients efficiently into the skin. They generally have a non-greasy feel, making them suitable for oily skin types.

• Vitamin C Cream Testers: Creams have a thicker, richer texture compared to serums. They are emulsions containing oils, emollients, and emulsifiers (such as Satin Cream Maker, Velvet Cream Maker™, or Sucrose Cream Maker™) that provide hydration and create a protective barrier on the skin's surface, in addition to delivering active ingredients. A Vitamin C cream combines the brightening effects of Vitamin C with moisturizing benefits.

For oily skin, a serum texture is often recommended due to its lighter feel and quick absorption. The revised formula provided by the staff uses Satin Cream Maker to achieve a suitable texture for manual mixing, focusing on brightening ingredients like Safe-B3, GlucoBright, and Tranexamic Acid.