AP 24® Whitening Fluoride Toothpaste (Singapore)

AP 24 Whitening Fluoride Toothpaste is Nu Skin's peroxide-free whitening toothpaste that removes surface stains through gentle polishing agents rather than chemical bleaching. At S$10.50 per 110g tube, it's one of the most accessible products in the Nu Skin range — and in Singapore, where daily kopi and teh consumption stains teeth faster than most people realise, a toothpaste that actively works on those stains twice daily is more practical than occasional professional whitening at S$500–1,000 per dental session.

What Makes AP 24 Whitening Fluoride Toothpaste Different

Most whitening toothpastes fall into two categories: peroxide-based formulas that chemically bleach enamel (effective but can cause sensitivity), or abrasive formulas that scrub stains off but risk wearing down enamel over time. AP 24 takes a third approach using a dual-action polishing system — hydrated silica and alumina — that operates at a controlled abrasion level. The Relative Dentin Abrasivity (RDA) of a toothpaste matters: the FDA considers anything below 250 RDA as safe, but most dentists recommend staying below 100 RDA for daily use. AP 24's polishing agents are formulated to remove surface stains from coffee, tea, red wine, and food colourants without the enamel erosion risk associated with highly abrasive formulas. The peroxide-free formulation is significant because peroxide-based whitening products are the primary cause of tooth sensitivity after whitening — a common complaint with whitening strips and in-chair treatments. By avoiding peroxide entirely, AP 24 achieves gradual surface stain removal that's safe for daily use, twice a day, indefinitely. The vanilla mint flavour is mild rather than the aggressive mint blast common in commercial toothpastes — a detail that's made it particularly popular among users who find standard mint flavours too intense. The product has gone viral on TikTok Singapore multiple times, with users documenting stain removal results over 2–4 week periods.

Key Ingredients

Hydrated Silica — the primary polishing agent, a mild abrasive that physically removes surface stains (extrinsic stains from food, drinks, and tobacco) through gentle friction during brushing. Hydrated silica is one of the most widely used and studied abrasives in toothpaste formulation. Alumina (Aluminium Oxide) — a secondary polishing agent that works alongside hydrated silica to enhance stain removal efficiency. Alumina has a Mohs hardness of 9, but at the micro-particle sizes used in toothpaste, it functions as a fine polish rather than a coarse abrasive. Sodium Fluoride (0.24%) — provides 1,100 ppm fluoride for cavity protection and enamel remineralisation. This is a standard therapeutic fluoride concentration recommended by dental associations worldwide for daily use. Sodium Monofluorophosphate — a second fluoride source that provides sustained fluoride release, complementing the immediate action of sodium fluoride. The dual-fluoride system ensures both immediate and prolonged cavity protection after brushing. Dimethicone — creates a smooth texture during brushing and helps the polishing agents distribute evenly across tooth surfaces for consistent stain removal. The formula does not contain hydrogen peroxide, carbamide peroxide, charcoal, or baking soda — ingredients commonly found in other whitening toothpastes that can cause sensitivity or enamel wear with prolonged use.

How to Use

Apply a pea-sized amount to a soft-bristled toothbrush. Brush for a full 2 minutes, covering all tooth surfaces — outer, inner, and chewing surfaces. Use twice daily, morning and evening, as your regular toothpaste. For best whitening results, allow the paste to sit on front teeth for 30 seconds before rinsing to maximise contact time with the polishing agents. Visible stain reduction typically becomes noticeable within 2–4 weeks of consistent twice-daily use, depending on the severity of existing staining. In Singapore, where kopi-o, teh tarik, and bubble tea are consumed almost daily by most adults, the stain accumulation is constant — which makes daily prevention more effective than periodic whitening treatments. One 110g tube lasts approximately 6–8 weeks with twice-daily use for one person. For households, the S$10.50 price point makes it economical to switch the entire family's toothpaste — it's often the first Nu Skin product new customers try, precisely because the price barrier is so low and results are visible relatively quickly.

Frequently Asked Questions

How is AP 24 Whitening Fluoride Toothpaste shipped in Singapore?
It ships from the official Nu Skin Singapore warehouse. Standard delivery is S$4.99, or free on orders over S$99. Expect 1–3 business days delivery to most Singapore addresses. Many customers add it to other product orders to reach the free shipping threshold.

Does it actually whiten teeth?
It removes surface stains (extrinsic stains from coffee, tea, wine, and food) through gentle polishing — which makes teeth appear whiter by returning them closer to their natural colour. It does not bleach teeth beyond their natural shade the way peroxide-based treatments do. For deeply set intrinsic stains (tetracycline staining, fluorosis), professional dental treatment is needed.

Is it safe for daily use?
Yes. The peroxide-free formula with controlled-abrasion polishing agents is designed for twice-daily use as your regular toothpaste. It contains 0.24% sodium fluoride (1,100 ppm) for standard cavity protection. Unlike peroxide-based whitening products, there's no recommended usage limit or rest periods needed.

Will it cause tooth sensitivity?
Sensitivity from whitening products is primarily caused by peroxide penetrating the enamel. Since AP 24 contains no peroxide, sensitivity is not a typical concern. If you already have sensitive teeth from other causes (receding gums, worn enamel), the polishing agents are gentle enough for most sensitive teeth — but consult your dentist if you have specific concerns.

Is it suitable for children?
Children aged 6 and over can use it with supervision. For children under 6, use only a rice grain–sized amount under adult supervision, as the fluoride content requires care with young children who may swallow toothpaste. Children under 2 should use a fluoride-free toothpaste unless directed otherwise by a dentist.

Important Information

Important Information: For dental use only. Keep out of reach of children under 6 years. If more than used for brushing is accidentally swallowed, seek professional help. Contains fluoride (0.24% sodium fluoride). Individual whitening results may vary based on staining and consistent use.

NuBest Skin is an Independent Nu Skin Brand Affiliate. This content is not produced or endorsed by Nu Skin Enterprises Inc.

Sources & References

Product formulation and ingredient data sourced from official Nu Skin product documentation (2024–2025). Fluoride concentration recommendations referenced from the American Dental Association (ADA) guidelines. RDA (Relative Dentin Abrasivity) safety thresholds referenced from FDA oral care product guidance and published dental research. Hydrated silica abrasive properties referenced from the Journal of Clinical Dentistry.

Reviewed by the NuBest Skin Editorial Team. Last updated: April 2026.