What are Restylane and Perlane derived from?

Restylane and Perlane are both derived from hyaluronic acid, which is a substance that naturally occurs in the body and is crucial for maintaining skin hydration and elasticity. The correct answer indicates that these products are formulated using substances originating from processes involving bacterial cultures, specifically those related to Streptococcus equi, which utilize fermentation techniques. This production method allows for a synthetic version of hyaluronic acid to be created in a laboratory setting, ensuring that it is pure and safe for injection.

The other options imply origins that are not accurate for Restylane and Perlane. Synthetic collagen does not relate to these products because they do not contain collagen; human skin cultures are also not used in their formulation, and plant extracts are not the source material for the hyaluronic acid used in these fillers. Thus, the connection to Streptococcus equi cultures is pivotal as it highlights the biological and biotechnology processes involved in creating safe dermal fillers.