Episteme
Episteme Stem Science Oil, 26ml (Rose Scent)
Episteme Stem Science Oil, 26ml (Rose Scent)
@cosme rating: 4.7/7.0
Approach to firmness from the foundation of the skin* *: stratum corneum
✓ 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
This serum oil contains PQQ*. Using encapsulation technology, PQQ* is successfully incorporated into a 100% oil base. This serum oil is used before applying makeup. It softens and conditions rough skin. *: Disodium pyrroloquinolinedione tricarboxylate (skin conditioning and moisturizing ingredient)
Ingredients
Jojoba Seed Oil, Caprylic/Capric Triglyceride, Ethylhexyl Palmitate, Isononyl Isononanoate, Cetyl Ethylhexanoate, Isostearyl Isostearate, Olive Fruit Oil, Propylene Glycol Dicaprate, Disodium Pyrroloquinolinedione Tricarboxylate, Evening Primrose Oil, Lupinus Albus Seed Extract, Passiflora Edulis Seed Oil, Tocopheryl Acetate, Helianthus Annuus (Sunflower) Seed Oil, Dunaliella Salina Extract, Polyglyceryl-6 Polyricinoleate, Fragrance
How to use
After washing your face, take an appropriate amount in your palm and gently 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.
It's neither too heavy nor too light, and it's an easy-to-use oil that doesn't leave a filmy feeling on the skin. When I first used it, I was impressed by how bright and smooth my skin felt the next morning, but as I continued to use it, the moisturizing effect seemed to fade, but the other effects seemed to fade. This may be because my skin has gotten used to it. I've used up the whole bottle, but I don't think I need this.
I received a sample from Epistem and used it. When I use this product and then apply lotion, my skin becomes softer and plumper. I realized that aging skin needs not only moisture but also oil. I use Stem Science Eye, and the scent is the same as Stem Science Eye. If I add this to my lotion during the dry autumn and winter months, I think I can feel my skin plump even if I'm not using Epistem's lotion. [Additional Note] I started getting acne after using it. It doesn't seem to suit my skin. It may be better suited to people with dry skin.
I purchased the full-sized product after using a sample of this introductory beauty oil, which you can use before applying toner to make your skin feel soft and fluffy. I used it a few times and my skin felt soft and fluffy from the first use. The beauty advisor said, "You can use less toner than usual." I certainly feel satisfied even with using less than usual. I actually accidentally used it after applying toner once, and it seemed to work on my nasolabial folds. It had an unexpected effect. It was originally a dropper type, but it seems to have been redesigned with a pump. I used up last year's supply, so I plan to use it again this winter.
I received this oil in a small bottle along with my purchase of lotion and emulsion. It has a lovely light pink scent. I apply it after washing my face and before applying lotion. It's not sticky, but it does feel like I'm applying oil. After that, I apply the lotion, but when I use a regular watery lotion for sensitive skin that doesn't contain ethanol, it feels repelling and doesn't blend in well. The Stem Science lotion, also from Epistem, contains ethanol and is a bit thick. This one works without that problem, so it might work better with lotions from other manufacturers. My skin has been sensitive lately, so I've been using less lotions containing ethanol. This oil might be difficult to use.
I consulted them about my concerns about my skin's texture, and they recommended this product. It's an introductory oil to use before applying lotion, and like the pre-applied emulsion, it apparently promotes the absorption of the lotion. PQQ is an ingredient that promises firming effects. I've used several pre-applied emulsions with a reputation for improving dryness, but I didn't like the stickiness afterward and didn't continue using them. However, this one leaves my skin feeling plump and supple even after applying lotion, so I like it. Epistem's rose scent is not overpowering, but elegant and soothing. Since the website doesn't offer much information about Epistem products, I highly recommend visiting the counter! They always impress me with their attentive service and amazing skills, and I'm always very satisfied.