I never thought that this would live up to its promises. I was so wrong. This took a weathered teak table with lichen growning on it back to nearly new. I was gobsmacked. This stuff is seriously great.Teak furniture looks amazing, makes it so easy to clean, buy and use this stuff every year!!We use this every year on our 8 year old teak dining set... still looks brand new. Some elbow grease needed of course, but 100% worth it !! The difference after just a cleaning is amazing. We are customers for life !!After one season, my outdoor furniture lost its color and I was worried that it couldn’t be restored. I used the cleaner on two different weekends and then added the protector after and it looks as good as new!Based on other reviews, my application for this product was somewhat unusual, so I wanted to write up my experience in case it can be helpful to others. I have a new construction house with a teak porch that the builder very sloppily stained with a horrible orange-y stain. The teak was not uniformly golden (I suspect because it's a different grade than that used for furniture--some boards darker than others). I let the stain weather off over the winter and then used Golden Care Teak Cleaner to prepare the porch for application of Semco Teak Sealer. The most-exposed sections of the porch were already beginning to weather silver. The Golden Care did not entirely remove the silver color, but I suspect because I was using it to clean a very large area, I didn't use it in the concentration one might use for furniture. However, the entire porch looked brighter, cleaner, and must closer to its original color. My only concern was that the directions call for protecting the ground underneath and rinsing well after. As I was dealing with a porch, I had no choice after rinsing but to let the water run off the edges. Luckily, I don't have any plants growing directly next to the porch, hopefully the product was sufficiently diluted not to cause any environmental harm.We live in southern Oregon on a river and have a teak table (12 years old)that remains on a covered deck all year long. We had done really nothing to maintain it during this time, so the legs and top were splotchy with black and grey mould, and the two top sides of the round table no longer matched the center leaf when it was lifted out from below the table to enlarge the table into an oval shape. One day in a furniture/home catalogue, I noticed some favorable comments about Golden Care Teak Cleaner, so I ordered some from Amazon. Today I put a plastic tarp under the table, and within two hours, a friend and I had worked on the entire table, and it was as though a brand new table suddenly was standing on my deck. I couldn't believe the results! Working section by section, by just wetting each section of table with water, then spreading on just a little of the cleaner solution, waiting 3 minutes, using the scrubber pad that comes with the product (in the direction of the grain and not even requiring much elbow grease), and then rinsing with water, voila!....what looks like a brand new table! I highly recommend this product and will use Golden Care Teak Protector on the table after the water has completely dried from rinsing. They also offer a product to protect the table against water or food stains, to be used after the Teak Protector.These Golden Care teak cleaner and teak protector are great products and easy to use. First you do need to sand the wood until you see the natural golden color. This year I used an electric sander and it went very quickly. I recommend sanding, cleaning, and protecting every other year. We leave the set out uncovered from spring-fall. It possibly could go longer if the set was covered while not in use. I used a plastic scrub brush with the cleaner and a sponge brush to apply the protector. I am very pleased with the results!I have a very nice, very expensive 72" teak table, with 6 chairs. It's about 14 years old, and over those years, it's been outside in Massachusetts, in the 90* heat in July, and the -20* covered in a foot of snow in Febuary. It's developed a grey patina, but also a lot of mold/moss... and is that flowery green stuff lichen? I don't even know. Or want to. Been meaning to clean this set for years, and finally bought this Golden care cleaner and I'm very happy.I have arthritis and tire easily, so it's slow going, but it's definitely working. As a sponge I actually am using a scotch sponge, with the sponge on one side and the green scrubby on the other, mostly because it's all I had under the sink, but the green scrubby side is working wonderfully well, and is more easily handled than the large scrubber that came with the cleaner. Finishing up the first chair and you can see the difference in the photo I've posted. I'll post more photos when I'm done, which may take a while, but an able bodied person should find this to be a fairly easy and relatively quick process. I'm so pleased!