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to/one Dream Flora Booster Serum, 55ml
to/one Dream Flora Booster Serum, 55ml
@cosme rating: 5.3/7.0
One drop that awakens your beauty.
✓ 100% authentic
✓ Ships from Japan in 3-5 days
✓ Duties prepaid for US orders
✓ Tracked delivery via Japan Post
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What it is
Awaken your beauty with just one drop. This 8% niacinamide ionic gel boosts your skin immediately after cleansing with 57 beauty ingredients, including 8% niacinamide, flora extract*1, fermented extract*2, and carefully selected scientific ingredients*3*4. The alkaline ionized water*5-based ionic gel penetrates deep into the stratum corneum, enveloping the skin and delivering beauty ingredients to every corner. Ceramide nanocapsules*6 containing five types of human ceramides maintain moisture and prevent skin imbalances. It leaves skin feeling plump yet light and smooth after use. It also supports the absorption of ongoing skincare routines, making it the key starter for strong, beautiful skin. *1 Achillea millefolium extract, Houttuynia cordata extract, Peony root extract (moisturizing) *2 Lactobacillus/hibiscus flower fermentation liquid, Saccharomyces/jobi's tears seed fermentation liquid (moisturizing) *3 Azeloyl diglycine potassium, niacinamide (all skin conditioning) *4 Ceramide NG, ceramide NP, ceramide AP (all moisturizing) *5 Water (base) *6 Ceramide NG, ceramide NP, ceramide AP, ceramide AG, ceramide EOP (moisturizing)
Ingredients
Water, Propanediol, Niacinamide, Glycerin, Lactobacillus/Hibiscus Flower Ferment Filtrate, Saccharomyces/Job's Tears Seed Ferment Filtrate, Lactobacillus/Grape Juice Ferment Filtrate, Rice Ferment Filtrate, Lactobacillus/Pear Juice Ferment Filtrate, Lactobacillus/Aloe Vera Leaf Juice Ferment Filtrate, Ceramide EOP, Ceramide NG, Ceramide NP, Ceramide AG, Ceramide AP , glycosphingolipids, peony root extract, azeloyl diglycine potassium, yarrow extract, aphanothece sacrum polysaccharides, chamomile flower oil, opuntia ficus-indica seed oil, white clover extract, saxifrage extract, edelweiss flower/leaf extract, rosa canina fruit extract, centella asiatica extract, tea tree leaf extract, houttuynia cordata extract, scutellaria root extract, knotweed root extract, licorice root extract, tea leaf extract , rosemary leaf extract, chamomile flower extract, betaine, sodium lactate, glycine, glutamic acid, lysine HCl, hydrolyzed jojoba esters, hydrogenated starch hydrolysates, trehalose, succinoglycan, citric acid, hydrogenated lecithin, phytosterols, pentylene glycol, PEG-60 hydrogenated castor oil, sodium benzoate, PEG-40 hydrogenated castor oil, BG, PCA-Na, PCA, serine, alanine, threonine, arginine, proline, fragrance
How to use
After washing your face, take an appropriate amount in your palm and apply it to your entire face.
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.
Over the past few years, my skin has become dry due to aging (I used to have oily skin), and measures to combat dryness have become essential... Rather than using a heavy serum or cream at the end of my skincare routine, I find it refreshing and comfortable to use a pre-treatment serum or emulsion before applying toner, so I've recently become obsessed with pre-treatment serums and emulsions. I'm currently using the brightening product from to/one, but I fell in love with this moisturizing product's holiday-limited packaging at first sight. I can use a different product for whitening, though. It's moisturizing and comfortable, and I love the packaging, so it gets me excited every time I use it.
I was using the Booster Serum before the renewal, but since it's now been renewed, I decided to buy it as part of the Beauty Day lotion set. I've been using to/one's Booster Serum for a while, but the way it absorbs into my skin is completely different from before the renewal!! It's absorbed even more smoothly. This type of serum often makes my skin feel extremely sticky even with just a small amount, but this one absorbs smoothly without any issues. (I used La Roche-Posay serums before, etc.) The lotion is also recommended, and since I finally got to use the Dream Flora series as part of the set, I plan to use it regularly.
It has no peculiarities and is easy to use. I haven't noticed any dramatic changes, but it doesn't interfere with my makeup, so I use it in the morning. The price is reasonable, so I also use it on my neck. I'm considering repurchasing it.
I usually use a different serum, but to/one's makeup products suit my skin, so I decided to try them out. I have dry, sensitive skin. I use this after cleansing my face and before applying toner. Because it's thick, I was a bit worried about how well it would absorb, but it absorbs quickly and doesn't leave a sticky feeling. It's great for rushing to apply toner right away, especially on busy mornings. It has a unique, light floral scent, but it fades quickly. It's not artificial, like fresh flowers, so I think people's preferences may vary. Three pumps is just right for me. While I haven't noticed any noticeable improvement in makeup application or gloss, I do notice that my skin is less dry and flaky around my mouth, even in the evenings. While I don't absolutely need this product, it's easy to use and doesn't irritate or cause any problems, so I use it morning and night, and I'm sure I'll finish it quickly.
I've been using this product since before the renewal. Personally, I prefer the previous version because I feel like the scent is stronger, but I still feel comfortable using it.