Potion of Frost/Stone Giant Strength

When you drink this potion, your Strength score changes to 23 for 1 hour. The potion has no effect on you if your Strength is equal to or greater than that score. This potion's transparent liquid has floating in it a sliver of fingernail from a giant of the appropriate type. The potion of frost giant strength and the potion of stone giant strength have the same effect.