16% Hydrogen Peroxide Whitening Gel Guide

Gentle entry strength · Lowest sensitivity in the LaserGlow line

16% Hydrogen Peroxide Teeth Whitening: Provider protocol guide

This 16% hydrogen peroxide teeth whitening protocol is written for providers using LaserGlow’s lightest professional concentration: first-time whitening clients, sensitivity-prone clients and maintenance visits between stronger treatments. It covers when to choose 16%, how to use 16% hydrogen peroxide whitening gel step by step, how to manage sensitivity, and when to move a client up.

Written by David Hanna, RDH Registered Dental Hygienist · Founder, LaserGlow · Updated October 2026
16% HP at a glance
  • 16% hydrogen peroxide
  • 1.2 mL single syringe
  • Up to 2 clients per syringe
  • Chairside, professional use only

Case selection

When to choose 16% hydrogen peroxide

16% is LaserGlow’s gentlest professional concentration, formulated to help minimize sensitivity while still delivering a controlled, visible shade lift. It is the strength most providers reach for on a client’s first whitening visit, or with anyone who flags sensitivity during consultation.

Best for 16% HP

Choose 16% for

  • First-time whitening clients
  • Known or suspected sensitivity
  • Maintenance visits between stronger treatments
  • Introducing a new client to your whitening menu
  • Progressive treatment plans building up to 25% and above

Consider a stronger gel

Move up to 25%, 35% or 44% for

  • Clients seeking a more dramatic single-session result
  • Stubborn extrinsic or intrinsic staining
  • Clients who completed a 16% session and want more lift
  • Established providers with a full isolation protocol

Next steps: 25% HP protocol · 35% HP protocol · 44% HP protocol

Step by step

16% hydrogen peroxide teeth whitening protocol

Here is how to use 16% hydrogen peroxide whitening gel in a standard chairside session. Session time and number of rounds follow the product instructions; treat this as the shape of the appointment, for trained providers only.

  1. Screen and consentComplete the client consultation, screen for contraindications and restorations, and get written consent before every session.
  2. Prepare and record shadeClean the tooth surfaces and record the starting shade against a shade guide, with a photo.
  3. IsolatePlace the retractor, dry the field, apply gingival barrier to all soft tissue in the treatment zone and light-cure it. Inspect the seal before any gel goes on.
  4. Apply the gelApply a thin, even layer of 16% gel to the facial surfaces of the treatment teeth. Don’t overload; excess gel adds cost, not results.
  5. Light activationActivate with a professional LED whitening machine, or a cheek retractor and LED light, per your treatment protocol and the product instructions.
  6. Remove and hand off aftercareRemove the gel after the designated session time, rinse, apply desensitizing gel if needed, record the finishing shade and review written aftercare.

Gingival barrier policy: a gingival barrier is required with every LaserGlow professional hydrogen peroxide gel (16%–44%), including 16%, and is mandatory at 35% and above. 16% carries the lowest soft-tissue risk in the line, but the barrier is still part of the protocol and keeps every session consistent and documentable.

Syringe yield: the 16% HP syringe is 1.2 mL. With controlled application, a thin, even layer without overloading, one syringe treats up to 2 clients. Track product use per appointment to understand your real teeth whitening cost per client. Round length and number of rounds: how long to leave whitening gel on.

Safety

Is 16% hydrogen peroxide safe for teeth?

Used by a trained provider following professional protocols, 16% is the most conservative hydrogen peroxide option LaserGlow offers. It is formulated to help minimize sensitivity, which is why providers choose it for sensitivity-prone and first-time clients. That does not make it risk-free for every client: temporary sensitivity and gum irritation can still occur, especially when isolation is incomplete.

Reduce sensitivity at 16%

  • Complete a full consultation and screen for contraindications before every session
  • Place and cure the gingival barrier along the entire treatment zone
  • Keep to the designated session time; longer contact doesn’t reliably improve results
  • Pair with desensitizing gel as part of aftercare when needed

More on case selection for sensitive clients: teeth whitening for sensitive teeth.

Restorations do not whiten. Crowns, veneers and bonding keep their shade while natural teeth lighten, so screen for them and discuss a possible mismatch before treatment. For the evidence on enamel and how to answer client questions, see does teeth whitening damage enamel? Professional use only: confirm the rules in your state, and follow your teeth whitening safety and compliance process.

Build client trust

Using 16% as the first step in a progressive plan

For med spas, salons and whitening studios, a comfortable first experience at 16% makes clients far more likely to return for a stronger session later.

Visit 1

Start at 16%

Screen, isolate and run a conservative session. Record starting and finishing shade so progress is visible.

Review

Reassess comfort and goal

If the session was comfortable and the client wants more lift, or staining hasn’t fully responded, plan the next strength.

Next visit

Step up when it fits

Move to 25% for routine lift, or 35% and above for stubborn staining with an established isolation protocol.

Compare strengths

Where 16% sits in the LaserGlow range

Each strength has its own protocol guide. For side-by-side selection criteria, sensitivity levels and yield, see the hydrogen peroxide whitening gel strength guide.

Strength Tier Use Format
16% HP (this guide) Gentle / entry Lowest sensitivity in the line. First-time clients and sensitivity cases. 1.2 mL single syringe
25% HP Most popular Balanced strength for routine chairside whitening across most client types. 1.2 mL single syringe
35% HP Advanced Stubborn staining. Barrier mandatory; trained providers with full isolation. 1.2 mL single syringe
36% HP Fresh-mix precision Dual-barrel system that activates at placement. Dual-barrel
44% HP Maximum strength Complex cases only. Barrier mandatory. 5 mL dual-barrel

Complete your setup

Supplies that pair with 16% HP

This strength16% hydrogen peroxide gel1.2 mL professional syringe for chairside use. RequiredGingival barrierLight-cured gum protector, placed before any HP whitening gel. AftercareDesensitizing gel penPost-treatment sensitivity management and enamel remineralization. New providersTeeth whitening starter kitsComplete setups for launching a whitening service.

Browse every strength and format in our teeth whitening gel collection.

FAQ

16% hydrogen peroxide whitening FAQ

Provider questions about using this strength. Still have a question? Contact our pro team.

Is 16% hydrogen peroxide strong enough to see results?

Yes. 16% HP delivers a noticeable, controlled shade lift, formulated for steady, comfortable progress rather than a dramatic single-session change.

Most providers use it for first-time clients, sensitivity cases and maintenance visits, then step up in strength if a client wants more dramatic results.

Do I need a gingival barrier with 16% HP gel?

Yes. A gingival barrier is required with every LaserGlow professional hydrogen peroxide gel (16%–44%), including 16%, and is mandatory at 35% and above.

16% carries the lowest soft-tissue risk in the line, but the barrier protects gum tissue and keeps your protocol consistent and documentable. Technique: soft tissue isolation for teeth whitening.

How many clients does one 1.2 mL syringe of 16% HP treat?

One 1.2 mL syringe treats up to 2 clients with controlled, precise application.

Yield depends on application thickness and arch coverage. Track product use per appointment to understand your actual cost per client. See how many clients per whitening gel syringe.

When should I move a client up to 25%, 35% or 44% HP?

Once a client has completed a 16% session comfortably and wants a more dramatic result, or presents with stubborn staining that a gentle concentration won’t fully address.

Many providers use 16% as the first step in a progressive treatment plan.

Is 16% HP gel appropriate for clients with sensitive teeth?

It is the concentration most providers choose specifically for sensitivity-prone clients.

Always complete a full consultation to screen for contraindications, and pair with desensitizing gel as part of aftercare when needed.

Can clients use 16% HP gel at home?

No. LaserGlow 16% HP is a professional gel for chairside use by trained providers with gingival barrier placement.

For take-home maintenance between sessions, providers use a lower-strength retail product such as the 44% carbamide peroxide pen.

Add 16% HP to your whitening menu

Order the 16% gel and gingival barrier, then compare it against LaserGlow’s other professional strengths.