stain

Hello sailors! This is my very first post on this forum, so please excuse any mistakes I make here. My wife and I own an Express 34 (S/V Wild Thing) in Seward, Alaska, which we bought back in 2021. Beautifully taken care of boat, and we really wanted to keep the high standard of maintenance...

The teak walls of our sailboat are streaked in some areas, it's is if the stain was stripped in those places. Does anyone know what stain was used to get the dark teak stain color, or what stain can be substituted? Thanks