A Russian manicure is a nail preparation technique that involves very precise cuticle work, often involving a nail drill and other special equipment to clean and remove excess skin around the nail plate. It is a controversial technique that is often associated with the use of hard gel extensions, which are considered non-toxic and durable.

Here are some details about Russian manicures based on the search results:

Positive:

• Russian manicures can help nails grow and keep them looking perfect.

Negative:

• The technique can be invasive and promote the intentional cutting and/or abrasion of the living skin surrounding the nail plate, which can be harmful.
• Many people who use this technique place nail coating products directly onto or up against the damaged skin, which can increase the risk of infection.

Ingredients or materials:

• There is no specific information about the ingredients or materials used in Russian manicures in the search results. However, it is mentioned that hard gel extensions are often used instead of acrylic extensions, which are considered harmful to nails and health.