OSAJI
Osaji Enrich Bio Serum, 30ml
Osaji Enrich Bio Serum, 30ml
@cosme rating: 5.5/7.0
A pre-serum that supports a healthy skin cycle that is unaffected by skin troubles
✓ 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
Healthy skin is moisturized, has a smooth texture, and is less prone to skin problems such as roughness. This is where the ideal balance of the microbiome. a diverse collection of bacteria that normally reside on the skin. comes into play. Enrich Bio Serum focuses on the beneficial bacteria "Staphylococcus epidermidis" that keeps skin healthy. By supplementing with prebiotics, you can boost your skin and aim for healthy skin. Use as a pre-serum immediately after washing your face. With an elegant scent of geranium and damask rose.
Ingredients
Water, Propanediol, Glycerin, Alpha-Glucan Oligosaccharide, Pentanediol, Sphingomonas Ferment Extract, Hydrogenated Lecithin, Phytosterols, Calcium Lactate, Magnesium Lactate, Potassium Lactate, Sodium Lactate, Lactic Acid, Chlorella Extract, Polymnia Sonchifolia Root Juice, Maltodextrin, Lactobacillus, Caprylic/Capric Triglyceride, Jojoba Seed Oil, Polyglyceryl-10 Oleate, Polyglyceryl-10 Myristate, Carbomer, Potassium Hydroxide, Hexyl Dimethylolpropionate, Pelargonium Graveolens Oil, Rosa Damascena Flower Oil, Rosa Canina Fruit Oil
How to use
Use immediately after washing your face. Apply with the dropper to bare skin and massage into skin.
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.
Since the beginning of this year, I've been concerned about dryness during the day, so I wanted to add something to my skincare routine. This thick serum absorbs easily into the skin. The geranium scent is very soothing. I've been using it morning and night for three days, and my skin has become smoother, and I no longer worry about dryness during the day. It's been a while since I've found a product that I can see results from in just a few days! I'm looking forward to seeing even more results once I've used it all.
This was my first time using it, but it was smoother than I expected and very easy to use! My skin has been feeling great for days! I'll definitely buy it again! I'm grateful that I was able to try something I've never used before as a gift from Suzykirei!
This was my first time using it, but it was smoother than I expected and very easy to use! My skin has been feeling great for days! I'll definitely buy it again! I'm grateful that I was able to try something I've never used before as a gift from Suzykirei!
Since the beginning of this year, I've been concerned about dryness during the day, so I wanted to add something to my skincare routine. This thick serum absorbs easily into the skin. The geranium scent is very soothing. I've been using it morning and night for three days, and my skin has become smoother, and I no longer worry about dryness during the day. It's been a while since I've found a product that I can see results from in just a few days! I'm looking forward to seeing even more results once I've used it all.
I received this as a gift from Suzykirei and have been using it for about two months. I put about three drops in my hand and apply it to my face and neck immediately after washing my face, and it leaves my skin feeling plump and supple. I have sensitive skin, but so far it hasn't irritated me and I like the scent. I'd like to continue using it!