Can I use this gel on my face or for a headache?

No, you should not use this gel on your face or for a headache. The product is specifically formulated as a body gel for larger muscle areas like the back, legs, and shoulders. The skin on your face, especially around the eyes and mucous membranes, is much more sensitive. Applying a cooling gel not intended for facial use could cause significant irritation, stinging, or discomfort. For headaches, this product is not designed or tested for that purpose and would not be effective. Its intended use is to provide a fresh, light sensation on the skin after physical activity to help muscles feel less heavy. Always keep it away from the eye area and only apply it to intact, unbroken skin on the body. If you have very sensitive skin, it's wise to test a small amount on your inner forearm first. For targeted facial care or headache relief, consult a specialist for appropriate products.