Foreo Luna 4: The Cult Cleansing Brush, Honest Take
A genuinely beloved sonic cleansing device that delivers softer, cleaner skin — but longevity concerns and a premium price tag keep it from being a no-brainer.
What real owners actually say
Right, here's the thing about the Luna 4: people are genuinely, almost embarrassingly obsessed with it. Multiple users report their skin has never been softer, breakouts have subsided, and one person literally said her sister now has "glass skin" from consistent Foreo use — which, sure, might be a stretch, but the enthusiasm is real. The silicone bristles are repeatedly called out as absurdly soft, even compared to older Luna models, and sensitive skin owners seem especially delighted.
The massaging feature gets a lot of love — it's the bonus people didn't know they wanted. Several users mention using it as a weekend spa-at-home treat. Adjustable intensity is another win; you can dial it down for rosacea-level sensitivity or crank it up for oilier days.
Now the unglamorous bit: one user shared that their 2020 Foreo died in under a year, got a warranty replacement, and *that* one also died within two years. For a device hovering around the $200+ mark, that's… not great. There's an undercurrent of "I love it but I'm nervous" about longevity.
Most people seem to buy during sales — Black Friday and Sephora promos come up constantly. Nobody seems to have paid full price, and honestly, neither should you. There's also mild confusion about which version to pick (sensitive vs. combination vs. balanced), with at least one person admitting they're choosing based on colour, which is *chef's kiss* relatable but probably not the best strategy.
A few practical questions pop up repeatedly: Can you use it over active acne? Can you follow up with BHA or AHA? These aren't clearly answered in user comments, which suggests the included guidance might be a bit vague for skincare newcomers.
What Glow loved
- Exceptionally soft silicone bristles, even gentler than Luna 3
- Visible improvement in skin texture, blackheads, and pore appearance
- Massage mode is a genuinely appreciated bonus for at-home pampering
- Adjustable intensity suits sensitive through oily skin types
- Travel lock and hygienic silicone design are practical wins
What Glow didn't
- Concerning durability reports — devices dying within 1-2 years at a premium price
- Very expensive at full RRP; most users only justify it during sales
- LED and microcurrent features feel ambiguous in terms of real benefit
- Quality control issues reported (charging defects on new units)
- Skin-type selection guidance is unclear for first-time buyers
The YouTube reviewers who actually tried it
Reviewers consistently highlight how much softer the Luna 4's bristles are compared to the Luna 3 — it's not just marketing, it's a tangible upgrade you can see and feel in demos. The device comes in multiple versions targeting different skin types (sensitive, combination, balanced), each colour-coded, which is helpful but also means you need to choose carefully.
The standout features reviewers demonstrate: sonic cleansing that visibly removes makeup residue and debris, a firming massage mode on the flip side of the brush, adjustable intensity via the app, and a travel lock that multiple reviewers specifically praised as a smart design detail. One channel highlighted the science behind sonic versus manual cleansing, drawing a comparison to how sonic toothbrushes revolutionised oral care — the point being that the rapid oscillations dislodge debris without abrasive scrubbing.
Several reviewers mention that you can't really feel the LED or microcurrent features working in the moment, which makes their actual contribution somewhat uncertain. The cleansing, however, is where people see results — blackheads reducing, pores appearing smaller, skin feeling notably cleaner than hand-washing alone.
Multiple long-term Luna users (Luna 2, Luna 3, Luna Mini) chime in to say the upgrade is worth it, particularly for the softer touch and additional massage mode. One user who switched from a Clarisonic Mia said the Luna 4 made them finally stop missing it.
Reviewers from smaller and larger channels alike are positive, though there's an important caveat: most videos appear to be from creators who received the device for review or have affiliate relationships. One user on an official Foreo video reported receiving a unit that wouldn't charge — the plug didn't fit properly — which is exactly the quality control gremlin you don't want at this price point.
The caveats nobody puts on the bottle
When user voice and video reviewers contradict each other, that's usually where the truth lives. Here's the disagreement.
- USER and VIDEO layers both praise the device enthusiastically, but a notable USER comment about two devices dying within 1-2 years goes unaddressed in any review — durability is the elephant in the room.
- VIDEO reviewers present the Luna 4 as a meaningful upgrade over Luna 3, while USER comments from Luna 3 owners suggest their older devices still work fine after years, raising the question of whether the upgrade is necessity or desire.
- USER comments reveal confusion about which skin-type version to choose (sensitive vs. combination vs. balanced), with at least one person admitting to choosing by colour — VIDEO reviews don't adequately address how to pick the right one.
- VIDEO reviews demonstrate LED and microcurrent features, but multiple comments suggest users can't feel these working, creating uncertainty about whether they're genuinely effective or just premium-priced checkboxes.
- USER comments overwhelmingly mention buying on sale (Black Friday, Sephora promotions), suggesting the full retail price may not align with perceived value — nobody's rushing to pay MSRP.
- One USER on an official VIDEO reports a charging defect out of the box, which no reviewer encountered — raising the question of whether quality control is inconsistent across units.
- Both USER and VIDEO layers confirm the cleansing results are real and impressive, but neither provides clarity on using the device with active acne or in combination with chemical exfoliants — a gap for skincare beginners.
The 10 videos that informed this verdict
Top YouTube reviews ranked by views. Tap a card to watch on YouTube — no autoplay, no creep tracking, no “you might also like.”