Titanium dioxide is a physical sunscreen ingredient known for its ability to block ultraviolet radiation. While it is highly effective at blocking UVB rays and short-wave UVA rays (UVA-2), its protection against the longer wave UVA rays (UVA-1) is not as strong compared to its counterpart, zinc oxide. UVA-1 rays penetrate the skin more deeply and are associated with premature aging. To achieve broad-spectrum protection, titanium dioxide is often used in conjunction with other UV filters that can absorb or reflect the full spectrum of UVA rays. Therefore, while titanium dioxide does provide UVA protection, its effectiveness is primarily against a portion of the UVA spectrum. For comprehensive UVA and UVB protection, formulations usually include a combination of sunscreen agents.

Identifying the "best" Shilajit resin hinges on factors like purity, origin, and processing methods. Pure Shilajit, sourced from the Himalayas, is often considered premium due to its rich mineral content and traditional extraction methods. Opt for lab-tested products to ensure it's free from contaminants and has a high fulvic acid content, critical for its therapeutic effects. Brands like Pure Himalayan Shilajit and Lotus Blooming Herbs are highly regarded. Consumers should look for authentic certifications and user reviews to gauge effectiveness and safety. Ultimately, personal health goals and preferences would guide the final choice.

No, you typically do not have to freeze resin. Most types of resin used in crafts and DIY projects, such as epoxy or polyester resin, are best stored at room temperature, away from direct sunlight and in a dry place to ensure a long shelf life and optimal viscosity for use. Freezing resin can cause it to become too thick or entirely solidify, making it unusable or difficult to work with once thawed. However, if you are working with a specific type of resin or additive that requires cold storage to preserve its properties, follow the manufacturer’s instructions closely. Generally, proper storage without freezing is sufficient to maintain the quality of your resin.