Numbuzin
Numbuzin No.5 Shirotama Glutathione C Tone-Up Base SPF50
Numbuzin No.5 Shirotama Glutathione C Tone-Up Base SPF50
Rated 4.9 out of 7.0 by Japan’s largest beauty community
Achieve translucent, radiant skin with a serum base
✓ 100% AUTHENTIC, SHIPS FROM JAPAN
✓ DUTIES & TAXES INCLUDED FOR US ORDERS
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What it is
Formulated with glutathione C*1, this serum tone-up base gives you clear, radiant skin like white pearls*2, both with and without makeup. *1 Glutathione, ascorbic acid (all skin conditioning ingredients) *2 A moisturizing effect that brightens the skin.
Ingredients
Hippophae Rhamnoides Water, Water, Diisopropyl Sebacate, Titanium Dioxide, Propanediol, Butylene Glycol, Butyloctyl Salicylate, Dibutyl Adipate, Ethylhexyl Triazone, Terephthalylidene Dicamphor Sulfonic Acid, Niacinamide, Alcohol Denat., 1,2-Hexanediol, Tromethamine, Dimethicone, Sea Buckthorn Oil, Caprylyl Methicone, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Polymethylsilsesquioxane, Polysilicone-15, Isododecane, Octyldodecanol, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Pentylene Glycol, VP/Eicosene Copolymer, Polyglyceryl-3 Distearate, Potassium Cetyl Phosphate, Cetearyl Alcohol, Glyceryl Stearate, Dimethicone/Vinyl Dimethicone Crosspolymer, Isopropyl Myristate Polyglyceryl-4 Stearate, Hydroxyacetophenone, Methylpropanediol, Diglycol/CHDM/Isophthalic Acid/SIP Copolymer, Isopropyl Titanium Triisostearate, Aluminum Hydroxide, Polyglyceryl-10 Myristate, Carbomer, Glyceryl Stearate Citrate, Adenosine, Stearoxyhydroxypropylmethylcellulose, Sodium Polyacryloyldimethyltaurate, Xanthan Gum, Glutathione, Polyether-1, Cetyl Hydroxyethylcellulose, Ethylhexylglycerin, Xyloglucan, Arginine, Alpha-Arbutin, Ascorbic Acid, Cyanocobalamin, Panthenol, Tocopherol, Ubiquinone, Hydroxypropyl Cyclodextrin, Glycerin, Polyglyceryl-10 Laurate, Thioctic Acid, Hydrogenated Lecithin, Tremella Fuciformis Extract, Potassium Hydroxide
How to use
After skin care, take an appropriate amount and spread evenly. Please use with caution, paying close attention to any abnormalities on your skin. If the cosmetics do not suit your skin, i.e., in the following cases, discontinue use. Continuing to use cosmetics may worsen the symptoms, so we recommend consulting a dermatologist. (1) If you experience any abnormalities such as redness, swelling, itching, irritation, discoloration (white spots, etc.), or darkening during use. (2) If the above abnormalities occur after direct sunlight on the skin where the product was used. [Storage Precautions] 1. Keep out of reach of children. 2. Store in a cool place away from direct sunlight, high temperatures, and humidity. 3. After use, keep the container tightly closed.
We ship internationally from Japan!
Frequently Asked Questions
Is this authentic?
Yes. We only buy from official retailers and directly from the brands here in Japan. Never resellers, never grey market stock.
We are beauty lovers too, so we know the worry, especially with something you are putting on your face. Authenticity is 100% guaranteed by us.
What are your shipping rates?
On orders under US$75, shipping is a flat US$20 to the United States and US$10 to all other countries.
Orders of US$75 or more ship free, applied automatically at checkout. Your exact shipping cost is shown before you pay.
How long does delivery take?
These estimates are for International Airmail (Tracked) and include 3 to 5 business days of processing in Japan.
- United States: 12 to 15 business days
- Canada, United Kingdom, France, Germany: 9 to 12 business days
- Australia, New Zealand, Denmark, Finland, India, Indonesia, Italy, Netherlands, Spain, Sweden, Switzerland: 10 to 13 business days
- China, Hong Kong, Malaysia, Singapore, South Korea, Taiwan, Thailand, Vietnam: 8 to 10 business days
- Rest of the world: 11 to 18 business days
Actual delivery can be affected by customs clearance, seasonal congestion, or carrier delays in the destination country, all of which are outside our control.
Do you offer express shipping?
Yes. As of 22 July 2026, we offer International Express Mail through Japan Post. The cost is based on order weight and is calculated automatically at checkout.
Will I pay customs or import fees?
US orders: No. As of July 1, 2026, all US orders ship DDP (duties delivered prepaid), meaning we prepay all import duties on our end. Nothing is due at your door.
Orders outside the US: Possibly. Duties and import taxes are set by your local customs authority and are not collected at checkout, so any charges on delivery are your responsibility.
We're working on rolling out prepaid duties for more countries soon.
Numbuzin No. 5 Shiratama Glutathione C Tone-Up Base SPF50+ PA++++. A small amount goes on easily, and the moisturizing effect lasts. It naturally corrected dullness. The Tone-Up Base contains 81% skincare ingredients, so I recommend it for those who like natural-looking base makeup and a radiant complexion!
It came with a Qoo10 set, so I thought I'd give it a try! I use it at the very end of my skincare routine; about a drop and a half goes a long way, covering the entire front of my face! I was frustrated because I couldn't use the dropper properly, but if you remove the dropper, press it down, and then put it in, it absorbs the product properly. It's pure white when you first apply it, but it blends nicely into your skin over time, and it's easy to use because it doesn't interfere with foundation. I'm concerned about UV rays, so I apply sunscreen over it.
This tone-up base doesn't leave a white cast, and with just a thin layer, it instantly brightens the entire skin. It's not heavy or sticky, and doesn't smudge even when used before makeup, so it's easy to use in the morning. It naturally corrects areas prone to shadows and dullness, and rather than just covering them up, it enhances the appearance of bare skin. With SPF50+ and PA++++, it also provides UV protection, and the glutathione formula makes it a great choice for those who want to combat morning dullness. Recommended for those who prefer a natural tone-up.
It has a smooth and light texture. The tone-up effect is strong, so be careful not to apply too much. I think it's easier to avoid mistakes if you apply it in small dots and then blend it in little by little. It contains 81% skincare ingredients, so it's recommended for when you want to apply makeup with a skincare feel.
I bought this because I was attracted to the fact that it contains 81% beauty serum ingredients. If you're not careful when applying it, it can end up looking like you've put on white makeup. It does have a tone-up effect.