4U2 Serum Tint Oil is a lip product that has been reviewed on YouTube. Here is a summary of the information found in the search results:

Product Details:

• 4U2 Serum Tint Oil is a lip tint that comes in 15 shades.
• It is described as having a good texture and being highly pigmented.
• According to one reviewer, it is long-lasting and can withstand eating and drinking.

Positive Reviews:

• Reviewers generally seem to like the product, with many praising its texture and pigmentation.
• Some reviewers also mention that it is long-lasting and can withstand eating and drinking.

Negative Reviews:

• No negative reviews were found in the search results.

Ingredients or Materials:

• No information about the ingredients or materials used in 4U2 Serum Tint Oil was found in the search results.