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YOUBUY Teeth Whitening Brightening Powder

$3.81

Whiten & BrightenEffectively removes stains from coffee, tea, wine, and smoking, helping restore your teeth’s natural whiteness. Gentle Yet PowerfulMade with non-abrasive...

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Description Size Guide Reviews

Whiten & Brighten
Effectively removes stains from coffee, tea, wine, and smoking, helping restore your teeth’s natural whiteness.

Gentle Yet Powerful
Made with non-abrasive, enamel-safe ingredients for daily use, ensuring a polished, brighter smile over time.

Freshens Breath
Enhances oral hygiene while leaving your mouth feeling fresh and revitalized after each use.

Easy to Use
Simply sprinkle onto your toothbrush or mix with toothpaste for effortless application.

Elevate your oral care routine with YOUBUY Teeth Whitening Brightening Powder—your solution for a cleaner, whiter smile.

Fit reference

Size Guide

Find your size below. If a product page shows its own size chart, use that one — it reflects that specific item's exact measurements.

🌏 Asian sizing note: Asian-cut sizing typically runs 1–2 sizes smaller than EU/International sizing. If you'd normally wear EU M, choose Asian size L for a true-to-size fit.

Women's Tops

Size EU Asian Bust Waist Shoulder Sleeve
XS 32–34 S 80–84cm31.5–33.1in 60–64cm23.6–25.2in 36cm14.2in 56cm22.0in
S 36–38 M 84–88cm33.1–34.6in 64–68cm25.2–26.8in 37cm14.6in 57cm22.4in
M 40–42 L 88–92cm34.6–36.2in 68–72cm26.8–28.3in 38cm15.0in 58cm22.8in
L 44–46 XL 92–96cm36.2–37.8in 72–76cm28.3–29.9in 39cm15.4in 59cm23.2in
XL 48–50 XXL 96–100cm37.8–39.4in 76–80cm29.9–31.5in 40cm15.7in 60cm23.6in
XXL 52–54 XXXL 100–104cm39.4–40.9in 80–84cm31.5–33.1in 41cm16.1in 61cm24.0in

Men's Tops

Size EU Asian Chest Waist Shoulder Sleeve
XS 44–46 S 84–88cm33.1–34.6in 70–74cm27.6–29.1in 42cm16.5in 60cm23.6in
S 46–48 M 88–92cm34.6–36.2in 74–78cm29.1–30.7in 43cm16.9in 61cm24.0in
M 48–50 L 92–96cm36.2–37.8in 78–82cm30.7–32.3in 44cm17.3in 62cm24.4in
L 50–52 XL 96–100cm37.8–39.4in 82–86cm32.3–33.9in 45cm17.7in 63cm24.8in
XL 52–54 XXL 100–104cm39.4–40.9in 86–90cm33.9–35.4in 46cm18.1in 64cm25.2in
XXL 54–56 XXXL 104–108cm40.9–42.5in 90–94cm35.4–37.0in 47cm18.5in 65cm25.6in

Women's Bottoms

Size EU Asian Waist Hips Inseam
XS 32–34 S 60–64cm23.6–25.2in 86–90cm33.9–35.4in 76cm29.9in
S 36–38 M 64–68cm25.2–26.8in 90–94cm35.4–37.0in 77cm30.3in
M 40–42 L 68–72cm26.8–28.3in 94–98cm37.0–38.6in 78cm30.7in
L 44–46 XL 72–76cm28.3–29.9in 98–102cm38.6–40.2in 79cm31.1in
XL 48–50 XXL 76–80cm29.9–31.5in 102–106cm40.2–41.7in 80cm31.5in
XXL 52–54 XXXL 80–84cm31.5–33.1in 106–110cm41.7–43.3in 81cm31.9in

Men's Bottoms

Size EU Asian Waist Hips Inseam
XS 44–46 S 70–74cm27.6–29.1in 84–88cm33.1–34.6in 80cm31.5in
S 46–48 M 74–78cm29.1–30.7in 88–92cm34.6–36.2in 81cm31.9in
M 48–50 L 78–82cm30.7–32.3in 92–96cm36.2–37.8in 82cm32.3in
L 50–52 XL 82–86cm32.3–33.9in 96–100cm37.8–39.4in 83cm32.7in
XL 52–54 XXL 86–90cm33.9–35.4in 100–104cm39.4–40.9in 84cm33.1in
XXL 54–56 XXXL 90–94cm35.4–37.0in 104–108cm40.9–42.5in 85cm33.5in

Women's Dresses

Size EU Asian Bust Waist Hips Length
XS 32–34 S 80–84cm31.5–33.1in 60–64cm23.6–25.2in 86–90cm33.9–35.4in 90cm35.4in
S 36–38 M 84–88cm33.1–34.6in 64–68cm25.2–26.8in 90–94cm35.4–37.0in 92cm36.2in
M 40–42 L 88–92cm34.6–36.2in 68–72cm26.8–28.3in 94–98cm37.0–38.6in 94cm37.0in
L 44–46 XL 92–96cm36.2–37.8in 72–76cm28.3–29.9in 98–102cm38.6–40.2in 96cm37.8in
XL 48–50 XXL 96–100cm37.8–39.4in 76–80cm29.9–31.5in 102–106cm40.2–41.7in 98cm38.6in
XXL 52–54 XXXL 100–104cm39.4–40.9in 80–84cm31.5–33.1in 106–110cm41.7–43.3in 100cm39.4in

Baby & Kids Clothing

Sized by age and height/weight, not adult body measurements. If your child is between sizes, size up.

Size Age Height Weight
0–3M 0–3 months 50–60cm19.7–23.6in up to 6kgup to 13.2lb
3–6M 3–6 months 60–68cm23.6–26.8in 6–8kg13.2–17.6lb
6–12M 6–12 months 68–76cm26.8–29.9in 8–10kg17.6–22.0lb
1–2Y 1–2 years 80–92cm31.5–36.2in 10–13kg22.0–28.7lb
2–3Y 2–3 years 92–98cm36.2–38.6in 13–15kg28.7–33.1lb
3–4Y 3–4 years 98–104cm38.6–40.9in 15–17kg33.1–37.5lb
4–5Y 4–5 years 104–110cm40.9–43.3in 17–19kg37.5–41.9lb
6–7Y 6–7 years 116–122cm45.7–48.0in 20–23kg44.1–50.7lb
8–9Y 8–9 years 128–134cm50.4–52.8in 25–29kg55.1–63.9lb
10–12Y 10–12 years 140–152cm55.1–59.8in 32–40kg70.5–88.2lb

Women's Shoes

EU UK US Asian (CN/JP) Foot Length
36 3 5.5 230 22.5cm8.9in
37 4 6.5 235 23.5cm9.3in
38 5 7.5 240 24.0cm9.4in
39 6 8.5 250 25.0cm9.8in
40 7 9.5 255 25.5cm10.0in
41 8 10.5 265 26.5cm10.4in

Men's Shoes

EU UK US Asian (CN/JP) Foot Length
40 6.5 7.5 255 25.5cm10.0in
41 7 8 260 26.0cm10.2in
42 8 9 265 26.5cm10.4in
43 9 10 275 27.5cm10.8in
44 10 11 280 28.0cm11.0in
45 11 12 290 29.0cm11.4in

Bags

Type Width Height Depth
Mini / Clutch 15–20cm5.9–7.9in 10–15cm3.9–5.9in 5–8cm2.0–3.1in
Small Crossbody 20–25cm7.9–9.8in 15–20cm5.9–7.9in 8–12cm3.1–4.7in
Medium Handbag / Tote 25–35cm9.8–13.8in 20–28cm7.9–11.0in 10–15cm3.9–5.9in
Large Tote / Shopper 35–45cm13.8–17.7in 28–35cm11.0–13.8in 12–18cm4.7–7.1in
Backpack 28–35cm11.0–13.8in 40–50cm15.7–19.7in 12–18cm4.7–7.1in
Briefcase / Laptop Bag 35–42cm13.8–16.5in 28–35cm11.0–13.8in 8–12cm3.1–4.7in

Belts

Size Waist Belt Length
S 70–75cm27.6–29.5in 90–95cm35.4–37.4in
M 80–85cm31.5–33.5in 100–105cm39.4–41.3in
L 90–95cm35.4–37.4in 110–115cm43.3–45.3in
XL 100–105cm39.4–41.3in 120–125cm47.2–49.2in

Jewelry — Ring Sizes

EU Size Asian (JP) Diameter Circumference
50 10 15.9mm0.63in 50mm1.97in
52 12 16.6mm0.65in 52mm2.05in
54 14 17.2mm0.68in 54mm2.13in
56 16 17.8mm0.70in 56mm2.20in
58 18 18.5mm0.73in 58mm2.28in

Watches — Strap Sizes

Wrist Circumference Strap Size
14–16cm5.5–6.3in S
16–18cm6.3–7.1in M
18–20cm7.1–7.9in L
20–22cm7.9–8.7in XL

Flat & Fitted Sheets

Size Flat Sheet (W×L) Fitted Sheet (W×L) Mattress Depth Fit
Single / Twin 180×260cm70.9×102.4in 90×190cm35.4×74.8in up to 30cmup to 11.8in
Double / Full 230×260cm90.6×102.4in 135×190cm53.1×74.8in up to 30cmup to 11.8in
Queen 245×260cm96.5×102.4in 150×200cm59.1×78.7in up to 35cmup to 13.8in
King 275×275cm108.3×108.3in 180×200cm70.9×78.7in up to 35cmup to 13.8in
Super King 305×275cm120.1×108.3in 200×200cm78.7×78.7in up to 40cmup to 15.7in

Duvet Covers & Pillowcases

Size Duvet Cover (W×L) Pillowcase (W×L)
Single / Twin 135×200cm53.1×78.7in 50×75cm19.7×29.5in
Double / Full 200×200cm78.7×78.7in 50×75cm19.7×29.5in
Queen 225×220cm88.6×86.6in 50×75cm19.7×29.5in
King 260×220cm102.4×86.6in 50×90cm19.7×35.4in

Sofa Covers

Measure your sofa's total seat width (not overall width including arms) before ordering — stretch covers rely on this range.

Type Seat Width Range Recommended For
1-Seater 90–140cm35.4–55.1in Armchair
2-Seater 145–185cm57.1–72.8in Loveseat
3-Seater 190–230cm74.8–90.6in Standard sofa
4-Seater 235–300cm92.5–118.1in Large sofa
L-Shape / Corner 300–350cm118.1–137.8in Sectional (specify left or right chaise)

Dining & Stretch Chair Covers

Type Seat Width Seat Depth Back Height
Standard Dining Chair 40–48cm15.7–18.9in 40–45cm15.7–17.7in 45–55cm17.7–21.7in
Armchair / Wingback 55–70cm21.7–27.6in 50–60cm19.7–23.6in 70–90cm27.6–35.4in
Bar Stool 30–40cm11.8–15.7in 30–35cm11.8–13.8in —

Pet Beds

Size Bed Dimensions (L×W) Recommended Pet Weight
S 50×40cm19.7×15.7in up to 8kgup to 17.6lb
M 65×50cm25.6×19.7in 8–15kg17.6–33.1lb
L 80×60cm31.5×23.6in 15–30kg33.1–66.1lb
XL 100×70cm39.4×27.6in 30kg+66.1lb+

All measurements are approximate, ±2–3cm due to manual measurement. If you're between sizes, we recommend sizing up. Individual product pages may list their own chart — use that one first if shown.