Best Teeth Whitening Gels Under $100 (2026)
We ranked products by a value score combining active ingredient strength, delivery format, brand reliability, and volume per dollar
The Verdict
- Best Overall: MySmile Teeth Whitening Gel Refills Pack — Best for refill convenience: dental‑grade gel refills that pair well with tray systems for repeated at‑home uses
- Best Value: Opalescence 15% Gel Syringes Refill Kit for Teeth Whitening — Best for mid‑strength whitening: 15% carbamide peroxide in syringe form for controlled tray applications
This roundup covers teeth whitening gels under $100, focusing on refill syringes and tray-compatible gels commonly used for at‑home whitening. Picks were chosen by value score using ingredient concentration, delivery format (syringe vs tube), brand reputation, and price-to-volume ratio
Top Picks
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1
Best Overall MySmile Teeth Whitening Gel Refills Pack
Best for refill convenience: dental‑grade gel refills that pair well with tray systems for repeated at‑home uses
Teeth whitening gel pen refill set for tray use, dental-grade formula with fast 10-minute results. Users report effective whitening with minimal sensitivity and convenient syringes
- fast-result formula
- non-sensitivity experience
- convenient syringes
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2
Best Value Opalescence 15% Gel Syringes Refill Kit for Teeth Whitening
Best for mid‑strength whitening: 15% carbamide peroxide in syringe form for controlled tray applications
Opalescence 15% gel syringes refill kit for home teeth whitening with no LED needed. Provides carbamide peroxide gel delivery for whitening trays; compatible with Invisalign trays. Users note effective whitening and ease of use, with mixed sensitivity experiences
- carbamide peroxide gel formula
- no light required
- compatible with trays including Invisalign
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3
Opalescence 20% Teeth Whitening Refill Kit (4 Syringes) Carbamide Peroxide
Best for stronger at‑home treatments: 20% carbamide peroxide syringes designed for tray whitening and aligner compatibility
Opalescence refill kit with carbamide peroxide gel in mint flavor for at-home whitening. Includes 2 packs with 2 syringes each, compatible with whitening trays. Customers note effective whitening and easy application, with some sensitivity and syringe durability concerns
- professional level whitening at home
- carbamide peroxide gel-filled syringes
- no LED light needed
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4
Opal by Opalescence 35% Teeth Whitening Gel Refill Syringes
Best for higher concentration needs: 35% carbamide peroxide syringes offering potent tray‑based whitening sessions
Opalescence 35% carbamide peroxide gel refills for professional-level whitening using custom dental trays. Clinically proven to whiten teeth over 7 days; no LED light needed. Customer interest noted but no specific insights provided
- 35% carbamide peroxide gel
- no LED light required
- extensive whitening history and awards
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5
Auraglow 44% Teeth Whitening Gel Refill Pack (3x5ml)
Best for high‑strength short courses: 44% gel refills intended for users seeking rapid whitening results
Teeth whitening gel refills with 44% carbamide peroxide in mint flavor. Includes three 5mL syringes for about 30+ treatments. Some users note tingling and watery consistency but report effective whitening
- 3x5mL syringes for 30+ treatments
- 44% carbamide peroxide whitening
- mint flavor
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6
Opalescence 10% Teeth Whitening Kit Refills
Best for gentle whitening: 10% carbamide peroxide syringes suited to users concerned about sensitivity
Opalescence 10% teeth whitening gel refills for at-home whitening, 4 syringes with fluoride. Suitable for use with whitening trays. One customer notes dentist recommendation for quality
- gel-filled syringes for easy use
- compatible with aligners
- no light needed
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7
Opalescence 35% CP Mint Gel Refill Kit (4 syringes) by Ultradent
Best for clinic‑grade potency at home: 35% carbamide peroxide mint gel in syringe form for tray use
Professional-level teeth whitening gel in refill syringes for at-home trays. Includes 4 syringes; compatible with Invisalign and other trays. Customers note noticeable results and good value, with some sensitivity considerations
- carbamide peroxide gel for efficient whitening
- 2 packs with 2 syringes each
- no LED required
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8
GO SMILE Teeth Whitening Gel (3.4 oz)
Best for sensitivity management: gel with Hyperox technology formulated to minimize discomfort during use
Teeth whitening gel designed for use with manual or electric toothbrush. Clinically proven to whiten up to 10x compared to leading whitening toothpastes with no sensitivity. Many users report visible whitening after 2-3 days
- no sensitivity guarantee
- up to 7 shades whiter in 30 days
- works with any toothbrush
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9
Opalescence 15% Gel Syringes - Refill Kit for Teeth Whitening
Best for consistent at‑home use: 15% carbamide peroxide syringes that support regular tray treatments
Opalescence 15% carbamide peroxide whitening gel refill kit for home use. Compatible with whitening trays; low sensitivity formula praised for effective whitening. Customers report noticeable color changes and strong value
- no LED light needed
- syringe-based gel delivery
- widely recognized whitening brand
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10
Opalescence 45% Teeth Whitening Gel Syringes (4-pack) Refill Kit
Best for maximum strength options: 45% carbamide peroxide syringes for intensive tray whitening cycles
Opalescence 45% carbamide peroxide gel in syringe format for at-home whitening. Includes 4 syringes; compatible with trays and aligners. Customers note effective whitening and professional-grade formula, with some reporting gum sensitivity
- high-concentration carbamide peroxide gel
- tray-delivery compatible
- mint flavor for user experience