How strong is the warming feeling, and is it safe for sensitive skin?

The warming sensation comes from the turpentine, which is known to create a noticeable feeling of increased surface circulation on the skin. It's a distinct, invigorating warmth, more pronounced than what you'd get from a bath with just epsom salts or essential oils. Because turpentine is an active ingredient, it's important to be cautious if you have sensitive skin. Start with the recommended amount (usually 1-2 capfuls for a full bath) and a shorter soak time of 10-15 minutes to gauge your tolerance. The inclusion of castor oil helps soften the formula to make it less harsh. Always avoid using it on irritated, sunburned, or damaged skin. If you have a known skin condition or are very reactive to warming products, doing a patch test on a small area of skin before a full bath is a sensible precaution.