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Philips BU-1S-US UVB Lamp – compact handheld phototherapy device for home use
The Philips BU-1S emits a precise 311 nm narrowband UVB wavelength – the clinically validated spectrum for targeted treatment of vitiligo, psoriasis and eczema at home.
Compact, lightweight and easy to use – treat affected areas precisely, without regular clinic visits.
Why customers choose Philips BU-1S
The Philips BU-1S is ideal for treating smaller, localised areas. Its compact form makes it easy to reach difficult spots – elbows, knees, scalp and face.
Where vitiligo often responds best
Typical course of repigmentation
Technical Specifications
| Device specifications | |
|---|---|
| Parameter | Value |
| Model | Philips BU-1S |
| Spectrum | NB-UVB 311 nm |
| Irradiance | ≥ 7 mW/cm² |
| Dimensions | 300 × 55 × 45 mm |
| Weight | 480 g |
| Power supply | 120V / 60Hz (US plug) |
| Manufacturer | YouWeMed |
Package Contents
What is Included
| ① | Safety glasses |
| ② | Instructions for use |
| ③ | UVB instrument (Philips BU-1S) |
| ④ | Travel bag |
Usage and Safety Information
Preparing for your first treatment
- Plug in the mains lead and switch the unit on.
- Recommended initial exposure time:
- Adults: 30 seconds
- Children: 15 seconds
How to use Philips BU-1S
- Treat 2–3 times per week with a minimum of one rest day between sessions.
- Only treat when any redness (erythema) from the previous session has fully faded and the skin has recovered.
- The target response is mild redness of the affected patches that appears after irradiation and is still visible the following day, fading by day two.
- For best results, treat each area for approximately 3–4 minutes depending on skin type.
Skin reaction (erythema) guide
Redness typically appears 6–8 hours after treatment:
- No redness: Increase exposure time by 20 seconds for the next session.
- Mild redness: If it fades within 24 hours, increase time by 20 seconds for the next session.
- Moderate redness (target response): If skin still looks pink after 24 hours, wait until it has fully faded before treating again.
- Strong redness: If redness has not cleared within 2 days, pause treatment until skin returns to normal, then reduce exposure time by 20%.
Certifications & Regulatory Compliance
The Philips BU-1S is a certified medical device manufactured by YouWeMed, confirming compliance with medical device safety and quality standards.
Medical Device Certificate
Quality & Safety Compliance
Frequently Asked Questions
Answers to the most common questions about using the Philips BU-1S for at-home phototherapy.
When can the first results be expected?
Fresh vitiligo patches often respond more quickly. The first visible changes may appear after a few weeks and, in many cases, within 1–3 months of regular treatment.
How often should I use the Philips BU-1S?
Treat 2–3 times per week with at least one full day of rest between sessions. Never treat the same area twice in one day.
Are protective goggles required during treatment?
When treating the face or areas near the eyes, protective goggles should always be worn. The goggles are included in the package.
Can the area around the eyes be treated?
Only with closed eyes, very short exposure times and particular caution. For this sensitive area, medical advice is recommended if in doubt.
Is NB-UVB therapy suitable for children?
Yes, but only under paediatric dermatology supervision and with individually adjusted exposure times. The starting time for children is 15 seconds.
Can I combine the lamp with topical creams?
Yes, combining it with Vitistop Gel is often recommended to further support repigmentation.
Can I use the lamp during summer?
Yes, provided the treated areas have not also been exposed to strong sunlight on the same day. Avoid combining NB-UVB therapy with intense natural UV exposure.
What should I do if skin irritation occurs?
Pause treatment temporarily and allow the skin to settle. Only resume once the irritation has fully subsided, using a reduced exposure time.
Why is there no redness at the beginning?
Initial exposure times are intentionally kept short. The aim is a mild erythema appearing a few hours after treatment and fading by the following day. If this does not occur, increase the exposure time by 20 seconds at the next session.
Is NB-UVB suitable during pregnancy or breastfeeding?
Yes, but only after medical advice. NB-UVB may affect folic acid levels, so individual medical guidance is advisable.
$220
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