Lumo Nordic Bloom Vitality Anti-Wrinkle & Revitalize Oil Serum

• fragrance: Fragrance or parfum, and scent ingredients listed by name, such as linalool and limonene. The most common cause of skincare allergies; worth avoiding if you have eczema, rosacea, or very sensitive skin.
• alcohol denat.: Denatured alcohol, which helps products feel light and dry fast but can dry out or sting dry and sensitive skin. Fatty alcohols like cetyl alcohol are different and aren't flagged.

These flags don't affect the pregnancy rating. They point out the ingredients most likely to make skincare sting, itch, or cause a rash. If your skin is sensitive, or one of them has bothered you before, you may want to skip the product or patch-test it first. Most people use them without a problem.