Tea tree oil is not a suitable sunscreen ingredient. While it possesses beneficial properties, it does not provide adequate broad-spectrum protection against UVA and UVB rays. Always use a dedicated sunscreen product with a sufficient SPF rating.

Red raspberry seed oil and carrot seed oil are often cited as having some natural SPF. However, their SPF value is variable and generally low, so they shouldn't be relied upon as a primary source of sun protection. Always use a broad-spectrum sunscreen.

No essential oils offer reliably high SPF protection comparable to standard sunscreens. While some, like carrot seed oil, may offer minimal protection, they are not a substitute for broad-spectrum sunscreen. Use a dedicated sunscreen for adequate sun defense.

Tea tree oil itself is not known to significantly increase sun sensitivity for most people. However, any potential reaction can vary by individual. Always perform a patch test before widespread use and discontinue if irritation occurs.