FOREO Care Guide 2026: Keep Your LUNA, issa and FLIP Looking Brand New

Look closely at a FOREO that's been on a bathroom shelf for a few months and you can usually read its owner's routine on it. A grey film of clay mask between the touchpoints. A crust of toothpaste around the issa's charging port. A hairbrush tossed into a gym bag with its bristles full of lint. None of it is dramatic, but all of it shortens the life of a device that cost real money.

The good news is that FOREO's care rules are short and specific, and most of them take less than a minute. Olivia Reviews read the online manuals for the LUNA™ 4 family, the issa™ 4 toothbrush and the FLIP™ plus hairbrush in October 2026 and turned them into one care routine, device by device, including the products FOREO says to keep away from its silicone.

Quick take: Wash LUNA devices with water and soap after every use, skip clay-based, silicone-based and grainy cleansers, and never use cleaners with alcohol, petrol or acetone. Rinse the issa after each brush, swap Hybrid heads about every six months, and keep its port dry before charging. Clean FLIP plus once a week. Avoid sun, extreme heat and boiling water for all of them. See today's FOREO deals if you're replacing heads or adding a cleaning spray.

LUNA™ 4, 4 mini and 4 go: The After-Every-Use Routine

All three LUNA 4 manuals carry the same cleaning instructions, which makes this easy to memorize:

1. Clean it every time. FOREO says to clean the device thoroughly after use.
2. Water and soap first. Wash the brush surface with water and soap, then rinse with warm water.
3. Pat, don't rub. Dry it with a lint-free cloth or towel.
4. Optional extra step. FOREO recommends spraying the device with its Silicone Cleaning Spray after use, then rinsing with warm water.

What to keep off the touchpoints

This is the part people don't expect. FOREO warns against using clay-based, silicone-based or grainy cleansers, exfoliators or scrubs with LUNA, because they may damage the soft silicone touchpoints. And it says never to use cleaning products containing alcohol, petrol or acetone, which can damage the silicone. So the gritty scrub and the clay mask go on with your hands; LUNA comes in afterward, or not at all.

Charging and battery habits

FOREO rates the LUNA 4 for up to 600 uses per charge, the mini for up to 500 and the go for up to 300, each charged by USB through a sealed port. The indicator light flashes when it's time to charge. If the device won't respond, the troubleshooting section says the battery is likely flat: charge it for up to two hours, then restart it by holding the power button. If the buttons freeze with a charged battery, holding the power button restarts it too.

Don't overdo the session

FOREO recommends not using the LUNA 4 for more than three minutes at a time, and the app caps cleansing duration at 240 seconds. The built-in timer switches the device off for you.

Storing and Traveling With Your Devices

FOREO's storage advice comes from its safety notes: don't leave the device in direct sunlight, and never expose it to extreme heat or boiling water. That rules out the windowsill and the sauna bench. For travel, LUNA 4 and LUNA 4 go have a travel lock: hold the + and – buttons together for three seconds to lock, and repeat to unlock. The LUNA 4 and 4 mini come with a travel pouch.

FOREO also says it doesn't recommend sharing your LUNA or issa with anyone else, for hygiene reasons. It's one of those rules that's easy to break when a sibling visits, so pack your own.

→ Check the latest FOREO coupon codes and deals

issa™ 4: Care for a Toothbrush That Rarely Needs Charging

After each brush

FOREO's manual asks you to clean the issa after every use by rinsing the brush with warm water while running your fingers through the bristles, then letting it air-dry. Once a week, it recommends spraying the body of the toothbrush with the Silicone Cleaning Spray and rinsing with warm water.

Three things FOREO says not to do

• No UV sanitizer case. FOREO doesn't recommend placing the issa 4 in one.
• No bleach toothpastes. The manual says they may damage or discolor the silicone.
• No harsh cleaners. The same alcohol, petrol and acetone warning applies.

Replacing the brush head

Unlike LUNA, the issa does have a replaceable part. Hybrid Brush Heads, which mix silicone with PBT polymer bristles, last up to six months, and the 100% silicone Sensitive Brush Heads last up to a year, according to FOREO. To swap one, turn the brush off and lift the head straight up. Then align the new head's center hole with the metal dowel, bristles facing forward, and push down. Replacements are sold in the app, on foreo.com and through authorized retailers.

Charging it right

FOREO lists up to 365 days per single USB charge. The indicator light at the base shifts from yellow toward red as the battery drops; when it turns red, charge for 2.5 hours until the light stops blinking. Before plugging in, make sure the port and cable are free of water and toothpaste residue. Don't use the brush while it charges, don't charge it for more than 24 hours, and use only FOREO's cable. FOREO also notes the issa 4 isn't intended for children under five.

FLIP™ plus: Weekly Cleaning and a Built-In Cover

For the hairbrush, FOREO recommends cleaning once a week: wash the brush surface with water and soap, rinse with warm water and pat dry with a lint-free cloth. The same no-alcohol, no-petrol, no-acetone rule applies. Its smartest care feature is physical. The outer frame flips forward to shield the bristles from lint and tangles in your bag, then flips back when you're ready to brush. FOREO lists up to two hours of use per charge with the included USB cable.

Your FOREO Care Cheat Sheet

Device	Everyday care	Periodic care	Avoid
LUNA™ 4 / mini / go	Water and soap, warm rinse, pat dry	Silicone Cleaning Spray, then rinse	Clay, silicone-based or grainy products; alcohol, petrol, acetone
issa™ 4	Warm rinse, fingers through bristles, air-dry	Weekly spray on the body; new Hybrid head about every 6 months	UV sanitizer cases, bleach toothpaste, charging over 24 hours
FLIP™ plus	Flip the frame closed for storage	Weekly wash with water and soap	Alcohol, petrol, acetone

Care and Your Warranty

Good care also protects your coverage. FOREO's two-year limited warranty (three years in Spain, Portugal and Sweden) covers defects from normal use, not cosmetic wear and tear or damage from accident, misuse or neglect. The manuals say the devices contain no serviceable parts, and any attempt to open one voids the warranty. Register the device in your FOREO account or the app, keep your receipt, and file any claim on foreo.com with a video of the problem.

How to Save on Replacement Heads and Add-Ons

1. New-customer offer: the site's sign-up box promises 15% off a first order for joining FOREO's community.
2. Special Offers page: previous-generation devices FOREO says it won't restock. When we looked, the page advertised the code SPECIAL for an extra 30% off. Our session showed a non-US storefront, so confirm it at checkout.
3. Youth discount: linked in the site footer through a verification partner.
4. Before you pay, compare current FOREO coupon offers. We aren't printing US prices because FOREO served us a non-US currency.

FOREO Care FAQ

Can I use my scrub or clay mask with a LUNA?

FOREO says to avoid clay-based, silicone-based or grainy cleansers, exfoliators and scrubs with LUNA, as they may damage the silicone touchpoints.

Do LUNA devices need replacement heads?

No. FOREO says the LUNA 4 range needs no replacement brush heads.

How often should I change my issa brush head?

Up to every six months for Hybrid heads and up to a year for 100% silicone Sensitive heads, according to FOREO.

What cleaning products should I never use?

Anything containing alcohol, petrol or acetone, across LUNA, issa and FLIP plus.

Final Verdict

FOREO care is refreshingly low-effort: soap and warm water for LUNA, a rinse and air-dry for issa, a weekly wash for FLIP plus, and a short list of products to keep away from the silicone. Add a new issa head on schedule, keep ports dry before charging and keep everything out of the sun, and your devices should look as good as the day you unboxed them. When it's time for heads or a cleaning spray, grab a FOREO coupon first.

→ Check the latest FOREO coupon codes and deals

Olivia Reviews researched FOREO using its official website, product listings and published policies in October 2026. We haven't personally tested these products. We may earn a commission when you buy through our links, at no extra cost to you.