Lab Series
Lab Series Max LS Serum N, 27ml
Lab Series Max LS Serum N, 27ml
Rated 5.0 out of 7.0 on @cosme, Japan's largest beauty review site
A firming serum with the line's highest niacinamide level for a look of resilience.
✓ 100% authentic, bought in Japan
✓ Ships from Tokyo in 3 business days
✓ Duties prepaid for US orders
✓ Tracked delivery via Japan Post
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What it is
Max LS Serum N is an anti-aging serum built around 5 percent niacinamide, the highest level in the Lab Series range. It pairs the niacinamide with a resveratrol complex and acetyl glucosamine to support skin's own structure and help firm and smooth the look of the skin. The 27mL serum sinks in quickly and suits all skin types.
Why it's different
Contains 5 percent niacinamide, the highest concentration in the Lab Series line.
A resveratrol complex and acetyl glucosamine support firmer, smoother-looking skin.
Sinks in quickly and suits all skin types, used before moisturizer.
Key ingredients
Niacinamide (5%): supports firmer, more resilient-looking skin
Resveratrol complex: helps condition skin
Acetyl glucosamine: helps smooth skin texture
How to use
1. Morning and night, after cleansing, shaving, or toner, take about two pumps.
2. Smooth over the face and neck, avoiding the eye area.
3. Follow with your moisturizer.
Lab Series Max LS Serum N, 27ml
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.
How much niacinamide does it contain?
It contains 5 percent niacinamide, the highest concentration in the Lab Series range, to support firmer, more resilient-looking skin.
When do I use it in my routine?
Use it morning and night after cleansing, shaving, or toner, and before your moisturizer.
Is it suitable for all skin types?
Yes. It is recommended for all skin types and sinks in quickly without a heavy feel.
What else is in the formula?
Alongside niacinamide, it holds a resveratrol complex and acetyl glucosamine to help firm and smooth the look of skin.
We ship internationally from Japan!
International Delivery Rates
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 international shipping take?
These estimates are for International Airmail (Tracked) and include 3 to 5 business days of processing in Japan. As of 22 July 2026:
- 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
These are estimates only. 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. We offer International Express Mail through Japan Post. The cost is based on order weight and is calculated automatically at checkout.
Will I have to 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.