Yes, the surface of skin is negatively charged.
Understanding Skin's Negative Charge
The reference material states that "the surface of all tissues, including the stratum corneum, carries a negative charge." This means that the outermost layer of your skin, the stratum corneum, which acts as a barrier, has a negative electrical charge.
Why is this important?
The negative charge of skin has implications for various applications, particularly in topical drug delivery:
- Enhanced Topical Penetration: Positively charged topical formulations can enhance drug penetration. This happens because the positive charges are attracted to the skin's negative charges, increasing the interaction between the formulation and the skin membrane.
- Formulation Development: This knowledge is crucial for scientists and researchers when developing skin care and drug delivery products. By understanding the electrical charge of the skin, they can optimize the delivery and effectiveness of these products.
Summary of Skin Charge
| Feature | Charge |
|---|---|
| Surface of skin tissue | Negative |
| Stratum corneum | Negative |
Therefore, the skin's negative surface charge plays a vital role in its interaction with substances, and understanding this characteristic is essential in developing effective topical applications.
