I had heard that Astroglide was so named because it was originally developed as a lubricant for the aerospace industry. And, that is why it is so much more effective than other lubricants - instead of just adding moisture, it is designed to be applied to two surfaces for lubrication between them. Debi Barr Portland, Oregon (wondering who first recommended that Astroglide might have commercial appeal beyond the aerospace industry.....) And who also thinks that if vaginal dryness can be a "side-effect" of nursing, then recommending lubricants may help some moms continue BFing.