Rosin 是从松木或松树桩中分离出来的,Rosin 是一种频繁接触的过敏原 (allergen),可引起过敏性接触性皮炎。
Rosin is isolated from pine wood or pine stumps, Rosin is a frequent contact allergen which induces allergic contact dermatitis.
Room temperature in continental US; may vary elsewhere.
Please store the product under the recommended conditions in the Certificate of Analysis.