As of October 2015, Thompson's Advanced Waterproofer and WaterSeal Waterproofing Stain are highly rated deck stains. The Advanced Waterproofer averages five out of five stars on Amazon.com's user rating scale. Consumers say that it works very well on old wood.
Specifically, Thompson's Rustic Red Advanced Waterproofer makes wood look like real aged redwood boards. Reviewers at The Home Depot's website give the Sequoia Red WaterSeal Waterproofing Stain 4.6 stars. The color is deep, rich and easy to apply evenly. The stain dries easily and is easy to clean.
Thompson's Natural Cedar WaterSeal Waterproofing Stain gets 4.5 stars on Walmart's website. Reviews state that the stain helps older wood take on a newer appearance. It also covers thoroughly.