Probably, yes. The magic potion I was thinking of is Potion of Rejuvenation- resets current life stage back to its beginning.
And for that matter, there are other things you can drink that can do the same thing, so you'll have to lay out if, or how many times, you can drink those. Potion of Youth, from the rewards menu, 1,500 satisfaction. If you can't raise 1500 satisfaction during an age span, you're not playing it right! Essence of sim's life, from a cowplant after the cowplant has consumed a sim- this would be a useful way of offing your spouses too. And Anti-Aging Serum, from scientist career.
And finally, were you assuming Normal lifespan?