Stainless steel construction ensures durability and easy cleaning for daily use
Compact size fits easily in bags or pockets for on-the-go oral care
Stamped with underbrush logo for a clean, natural aesthetic
Compatible with pearl serum for customizable oral care routines
Summarized by Shop
Swish. Rinse. Refresh.
Crafted from stainless steel and stamped with the Underbrush logo at the base, this compact cup is the perfect companion to Pearl Serum. Designed for daily use - just add a few drops of pearl serum, top with water, and you’re good for a refreshing swish.
Material
Stainless steel
Capacity
Not specified
Logo
Underbrush logo at base
Intended use
Rinse with water and pearl serum
Summarized by Shop
4.8
149 ratings
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1
I love this cup. It is perfect for my mouthwash. It stays clean and doesn't take up a lot of space on my counter. Plus I don't have to worry about it breaking if it gets dropped
L
Leslie · July 12, 2026
Solid but bigger than it needs to be. I have been having a hard time getting the right amount with the mouthwash because the lines are so far spaced. Once I find the sweet spot it will be great but I was hoping for something right out of the gate that knocked it out of the park.
R
Rachel · July 5, 2026
Cute and practical
Small, practical and well made. Lightweight and easy to travel with and best part is it’s plastic free and made well