Don't Forget Your Neck: Why Decollete Care Matters

Look at a photograph of yourself from ten years ago and then look at your neck. For most people the neck has aged further than the face — and the reason is not genetics. It is that almost everyone builds a routine for their face and stops, deliberately, at the jawline.

The neck and décolleté are a genuinely different problem from the face. Once you know why, the correct approach follows almost automatically — and it is not simply "apply your face cream a bit lower."

Why the neck ages first

Four things combine, and all four are structural.

• The skin is thinner. Neck skin is meaningfully thinner than facial skin, with less subcutaneous fat beneath it. Less padding means creases set faster and the underlying structure shows sooner.
• There are fewer oil glands. Fewer sebaceous glands means less natural moisturising, so the area dries out more readily and loses elasticity faster.
• It moves constantly. Every turn of the head, every glance down at a phone, flexes the same skin thousands of times a day. Those lines become permanent more quickly than expression lines elsewhere.
• It is the most sun-exposed area nobody protects. Faces get sunscreen. Necks get whatever runs down from the jaw, which is not much. Cumulative UV exposure is the single largest driver of visible ageing, and the neck receives it largely undefended.

There is also a mechanical contributor nobody likes hearing about: sleeping position. Repeated compression against a pillow adds up over decades.

Why face products do not transfer down

Two reasons, and the second is the one that actually matters.

The first is usage: most people apply product to the face and stop at the jaw, so the neck receives perhaps a fraction of a normal dose, and only incidentally.

The second is that even generous application does not solve it. The neck's target tissue sits deeper and its skin barrier is different. Products formulated for facial skin are aimed at the epidermis and upper dermis of the face. On the neck, the concern is often not just surface texture but loss of firmness in tissue below — and a topical cannot reach that.

That is exactly the gap that a device emitting red plus near-infrared is designed to close.

Why near-infrared earns its place here

Wavelength determines depth. Red light in the 630–660nm band reaches the upper dermis; near-infrared at 810–850nm travels further, into tissue below the dermis.

For the neck and décolleté, that extra reach is the point. The skin is thin, the target is deeper, and the visible problem — laxity, crepey texture — originates in tissue that red light alone will not reach at useful intensity. Our Red & NIR Neck Mask pairs 630nm red with 850nm near-infrared for precisely that reason.

Near-infrared is invisible. You will not see it working, and that is normal — it is not a fault and it is not a sign the device is underpowered. It is also, for that reason, the easiest wavelength to fake, which is why we publish the nanometer value rather than describing it as "deep-penetrating technology."

The décolleté is part of the same problem

"Décolleté" refers to the chest area below the collarbone, and it belongs in the same conversation for the same reasons: thin skin, minimal oil production, and — if you wear open necklines — sun exposure that rivals the face.

The visible signs differ slightly. The neck tends to show horizontal creases and vertical bands; the décolleté shows fine crêpey texture and, in many people, pigmentation from sun exposure that accumulated decades ago. Both respond to the same combination of deep-reaching light, consistent topical care, and sun protection.

Building a neck-inclusive routine

The fix is smaller than it sounds. You are not adding a second routine; you are extending the one you have and adding one dedicated step.

1. Extend every step down. Cleanser, serum, moisturiser — all of it continues past the jaw to the collarbone. The cost is a slightly larger pump of product.
2. Sunscreen on the neck, every morning. This is the highest-return change on the list, and the one most often skipped. If you wear open necklines, it extends to the chest.
3. Dedicated light sessions two to three times a week. Ten minutes, on clean dry skin, with the device seated comfortably against the neck and décolleté.
4. Treatments after, not before. Same rule as the face — actives and moisturiser go on after the session, on the skin the light has primed.

Technique matters more on the neck than on the face

Light falls off with distance, so contact matters more than intensity claims.

• Seat the device against the skin rather than hovering it. A gap of even a centimetre meaningfully reduces what arrives.
• Cover the whole area, not just the front. The sides of the neck age at the same rate and are more visible in profile.
• Sit upright. Posture changes the geometry of the neck skin and helps the device sit consistently.
• Keep to the stated session length. Photobiomodulation has an effective dose range; longer is not better.
• Protect your eyes. Use the shields provided, and keep eyes closed.

What to expect, and on what timeline

Be sceptical of anything that promises a change in days. The honest expectation, consistent with how photobiomodulation behaves elsewhere:

• Weeks 2–4 — skin on the neck feels and looks better hydrated and smoother. This is largely the routine catching up, not the light.
• Weeks 8–12 — the point at which firmer-looking texture and softened fine creasing typically become noticeable.
• Beyond 12 weeks — where cumulative change is most visible, provided sessions actually happened.

Individual results vary, and the neck is a slow area by nature. It also receives sun, movement and gravity every single day regardless of what you do, which is why consistency matters more here than almost anywhere else in a routine.

Mistakes that hold the neck back

1. Stopping at the jawline. The most common cause of a face that does not match its neck.
2. Applying actives before a session. Nothing between the skin and the light.
3. Hovering the device. Distance costs you dose.
4. Skipping sunscreen because the neck is "under the chin." It is not; the sides and the décolleté take direct exposure.
5. Judging it at week three. This is a twelve-week area, not a twelve-day one.

Frequently asked questions

Can I use my face mask on my neck?

Only if it physically seats there and covers the area evenly. A face mask is shaped for a face, and light falls off with distance, so a poor fit means most of the output never reaches the skin. If the neck is your concern, a device shaped for it is the more sensible purchase.

Do I need near-infrared, or is red enough?

Red will do something for surface texture. Near-infrared reaches the deeper tissue where laxity originates, which is the main complaint on the neck. For this area specifically, the longer wavelength is doing real work.

How often should I use it?

Two to three sessions a week is a sustainable cadence. The neck repays consistency over months far more than intensity over days.

Does the décolleté need a different device?

No — the same red and near-infrared combination applies. The practical question is coverage and how evenly the device sits across a flatter, broader area.

Will it help with sun spots on the chest?

Pigmentation from past sun exposure is a different problem, and light therapy is not a proven treatment for it. The protective step that matters is sunscreen going forward, since the exposure that created those spots is the same exposure that will darken them.