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Tighten Up is a glycerin-based cream from Nasstoys that uses potassium alum to create a temporary tightening and tingling sensation during anal play. It is marketed for men but used by anyone curious about a firmer feel. The effect is short-lived and comes from a mild astringent rather than any lasting change. Compared with plain lubricants, it adds sensation but no glide, so most users pair it with a separate lube. Reviewers are split: some enjoy the extra grip, while others find it drying or too intense.
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Lowest price we've seen: $14.33 on Nov 11 at Amazon. Tracked across 1 store since Nov 11.
Owners report a strong tingling and tightening sensation that some enjoy for anal play, but many complain of burning, dryness, and stickiness. Opinions are sharply divided, and those with sensitive skin often regret trying it.
Tighten Up for Men is a cream applied to the anal area to temporarily increase the feeling of tightness and sensitivity. It is made with a glycerin-based, natural tightening agent.
The active ingredient is potassium alum, in a washable base of PEG-7 and PEG-75. To use it, apply a small amount of the cream to the desired area.