How does MoistureSeal® Technology in Bausch + Lomb Ultra maintain 95% moisture for 16 hours?

How Does MoistureSeal® Technology in Bausch + Lomb Ultra Maintain 95% Moisture for 16 Hours?

MoistureSeal® Technology is the moisture-retention mechanism that defines Bausch + Lomb Ultra monthly contact lenses — specifically designed to address the moisture decline that affects monthly contact lens wearers across a full day of wear.

The Problem MoistureSeal® Addresses

Monthly contact lens wearers face two moisture challenges: intra-day moisture loss (within a single day) and cross-cycle moisture decline (progressive reduction in comfort over 30 days as deposits accumulate). Most monthly lens technologies primarily address the cross-cycle challenge. MoistureSeal® Technology is specifically engineered for intra-day performance — maintaining moisture levels across a single day of up to 16 hours.

How MoistureSeal® Technology Works

MoistureSeal® Technology integrates polyvinylpyrrolidone (PVP) — a high molecular weight wetting agent — throughout the Samfilcon A silicone hydrogel material during lens manufacture. The PVP molecules are specifically selected at a size that maximizes moisture retention: larger PVP molecules are more resistant to leaching out of the lens during wear, maintaining their moisture-retaining effect throughout the full 16-hour period. The PVP is incorporated throughout the lens matrix rather than applied as a surface treatment, so the moisture-retaining properties cannot degrade through blinking, handling, or the daily cleaning cycle.

The Measured Result

Bausch + Lomb's clinical data shows 95% moisture retention for up to 16 hours of daily wear — a specifically measured figure for MoistureSeal® performance, distinct from the general moisture claims made by many contact lens products. Consult your eye care professional to confirm whether Bausch + Lomb Ultra is appropriate for your prescription and lifestyle.