1 / 7Philips Sonicare C3 Premium Plaque Defence HX9046/88 Replacement Heads, Black, Pack of 6
Philips Sonicare C3 Premium Plaque Defence HX9046/88 is a six-pack of black replacement brush heads for compatible Sonicare handles. Its dense central bristle cluster is presented for plaque cleaning and stain removal, while BrushSync reminders require a compatible handle.
At a glance
- Click-on replacement heads with a pentagonal central bristle cluster.
- Philips claims up to 10x more plaque removal than a manual toothbrush. This is a manufacturer comparison, not an independently verified result.
- The up to 100% more stain removal claim is specified after 3 days in White + mode versus a manual toothbrush.
- BrushSync replacement reminders need a compatible handle. Blue bristles turning white provide another replacement cue.
Reference price: £56.99
Price checked: 12 Nov 2026
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Pros and cons
Pros
- Pack of six provides multiple replacement heads in one purchase.
- The click-on fit is intended for Philips Sonicare handles, with Philips One handles excluded.
- The central bristle cluster and stated plaque and stain-removal aims suit buyers prioritising a deep-clean brush head.
- Manufacturer states that 70% of the brush-head plastic is bio-based and the packaging is paper-based and recyclable where facilities exist.
Technical specifications
14 specifications| Brand | PHILIPS |
|---|---|
| Model | C3 Premium Plaque Defense |
| Pack size | 1 count (Pack of 6) |
| Colour | Black |
| Material listed | Plastic |
|---|---|
| Bristle material | Nylon |
| Firmness | Medium |
| Brush-head form | Soft-touch, Pentagonal bristle pattern |
| Compatible devices | all sonicare handpieces |
|---|---|
| Bristle movements claimed | up to 62,000 bristle movements |
| BrushSync reminder | compatible handles |
| Weight listed | 0.04 Kilograms |
|---|
| Bio-based plastic claim | 70% of the plastic in this brush head is bio-based³ |
|---|---|
| Packaging claim | paper-based recyclable packaging⁴ |
What to know before buying
Listing details to confirm
The broad compatibility claim is qualified by the product description, which excludes Philips One handles. BrushSync reminders work only with compatible handles. Replace the head every three months or when the blue bristles turn white, whichever comes first. The stain-removal comparison applies after three days in White + mode, and the bio-based plastic claim uses a mass-balance allocation basis. Packaging recyclability depends on local facilities. Not suitable for children under 3 years old because it contains small parts that can be swallowed. The listing gives the model as “C3 Premium Plaque Defense” while the UK title uses “C3 Premium Plaque Defence”. Compatibility is described broadly as all Sonicare handpieces, but the detailed description excludes Philips One handles. Treat the explicit exclusion as the compatibility caveat and check the handle model before buying.
Who is it for?
A good fit for
- Sonicare owners looking for a six-pack of black plaque-focused replacement heads, after confirming their handle is compatible.
- Buyers who want a brush head with a central bristle cluster and can use a compatible handle for BrushSync reminders.
Less suited to
- Owners of Philips One handles.
- Children under 3 years old, due to the stated small-parts warning.
Customer reviews on Amazon
- 5 stars
80% 80% - 4 stars
13% 13% - 3 stars
4% 4% - 2 stars
1% 1% - 1 star
2% 2%
Customer feedback highlights perceived cleaning performance, quality and fit, with some customers saying their mouths feel cleaner for hours. Durability experiences are mixed, including reports of bristles falling off as well as reports of long service. These views matter for a brush head intended for regular replacement, but do not establish how long an individual head will last. The aggregate rating is broadly positive, though ratings alone do not explain specific experiences.
Positive themes
- Customers describe the heads as good quality and effective at cleaning.
- Feedback describes a proper fit.
Mixed feedback
- Durability feedback is mixed. Some customers report long-lasting heads, while others mention bristles falling off.
Frequently asked questions
How many heads are included?
The listing identifies this as a pack of six.
Will these fit every Philips Sonicare handle?
The listing says they fit Philips Sonicare handles but specifically excludes Philips One handles. Check the handle model before ordering.
Do BrushSync reminders work with any handle?
No. The replacement reminder is stated to work with compatible handles. Blue bristles turning white are another replacement cue.
When should the brush head be replaced?
The supplied directions say every three months or when the blue bristles turn white, whichever comes first.
What conditions apply to the stain-removal claim?
The listing says up to 100% more stain removal after three days in White + mode compared with a manual toothbrush. This is a manufacturer claim.
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Offer details
- The listing price shown is £39.99 against a stated reference price of £56.99, with a listed 30% discount. No coupon condition is specified.