The Soaping 101 video for foaming soap requires a paid membership to view now! I've been making foaming soap for years from the "No Paste #4" recipe in the Liquid Soapmaking book. I always reference that video when it comes to diluting it for foaming soap. I CANNOT remember the percentages of soap base, polysorbate 80, preservative, and fragrance. Can anyone tell me what they are?