FAQs

Frequently Asked Questions

About FourFlow

What is FourFlow?
FourFlow is a 4-in-1 travel toiletry bottle with four independent sealed chambers and a single center-dial pump. Fill each chamber with a different product — shampoo, conditioner, body wash, face wash — twist the dial to select which one you want, press the pump, and only that product comes out.

How does the dial work?
The center dial mechanically routes the pump to one chamber at a time. Twist to the product you need, press the pump, and nothing else moves. Zero cross-contamination, zero guessing.

Is it TSA-approved?
Yes. Each chamber holds exactly 25ml — within the TSA 100ml per-container carry-on limit. All four chambers fit inside a single 1-quart bag.

Is it leak-proof?
Yes. Each chamber uses a dual-wall silicone gasket tested across 500+ pressurization cycles. Checked bag, carry-on, gym locker — it holds tight.

What liquids can I fill it with?
Shampoo, conditioner, body wash, face wash, lotion, serum, hair oil — any liquid or light gel consistency. Not recommended for thick pastes like toothpaste.

How do I clean it?
Rinse each chamber with warm water, twist open the top, and let air dry. Takes about 30 seconds.

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Shipping & Orders

How long does shipping take?
Orders typically arrive within 5–10 business days in the U.S. International shipping takes 10–20 business days.

How do I track my order?
You'll receive a tracking number by email as soon as your order ships.

What if my package is lost or delayed?
Reach out via our Contact page and we'll sort it out right away.

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Returns & Warranty

What is your return policy?
We offer 30-day returns on unused, unopened products. Contact us and we'll send a prepaid return label.

What if my bottle arrives damaged?
Email us within 7 days of receiving it and we'll send a replacement at no charge.

Still have a question? Contact us here.