For my super-heavy flow, it lasts for 2-4 hrs (active) and for 5-6 hrs (overnight). Insertion is very easy, removal tends to be slightly painful - I expected this given how much it expands. In comparison, Super-Plus (Tampax or UBK) lasts for 2-2.5 hours (active).

Because I've figured out how long it lasts for my flow, I've rarely faced leaks. To help, I always wear a thin pad/ liner. I'm most grateful for Ultra (or any tampon!) when I stand up after hours of sitting. Even w/ the thickest of pads, I used to make a mad dash to the loo to prevent a mini-Niagara Falls down there! It's truly the longest lasting absorbency I've found, whether at work or on the road. Hopefully, Tampax will someday introduce it in Compak?

The only bad part is availability in Canada and so, its price. Well (dot) ca is the ONLY Canadian online retailer to stock Ultra @ $7 for 18ct.

So my period has been super heavy and like 3mths long, I have tried so many different brands I went to the states and found the tampax pearl ULTRA oh my, I've been wasting my money buying the others my new life savour