Based on the reviews, the Hyaluronic Acid Fresh Sun Serum by Isntree generally does not burn in the eyes. Many reviewers specifically mention that it does not cause eye irritation or stinging sensations, which is a significant positive point for this product. However, a few reviews do note mild discomfort or irritation, indicating that while it is generally well-tolerated, individual experiences may vary.

For those concerned about eye irritation, it is advisable to apply the sunscreen carefully, avoiding direct contact with the eyes. If irritation occurs, it may be helpful to consult with a dermatologist or consider alternative products.