The Night Science
Experts
With over 40 years of research,
Estée Lauder scientists are
the experts in night skin science.
Our nighttime skincare formulas
are based on pioneering sleep
science and a deep understanding
of skin’s night biology.
Why we know sleep science:

OUR RESEARCH & EXPERTISE
By The Numbers
40 YEARS
of Night Science Research & Discoveries
51 PATENTS
Markers of Scientific Achievement
1 FIRST-EVER CLINICAL SLEEP STUDY
Groundbreaking Research with Case Western Reserve
36 PUBLICATIONS
& Conferences Globally

DID YOU KNOW
Skin works biologically differently at night?
Protect by day. Renew by night.
Like our entire body, skin has a circadian rhythm.
It performs very different actions during the day versus the night.

- • Protects
- • Has a stronger, thicker barrier
- • Produces the most oil
- • Has a higher pH level
It strengthens its protective defenses
against environmental assaults.

Every Night
- • Renews itself following the damage of the day
- • Is more prone to moisture loss
- • Produces the most collagen
- • Has a more permeable barrier
It re-energizes with its critical renewal process that peaks while we sleep.
When your skin’s “clock” and critical night renewal are disrupted by everyday life—a busy calendar, endless scrolling and especially poor sleep—it shows on skin.
Pioneering Sleep Science

Poor Sleep. Skin Aging.
What’s the Connection?
In a first-ever clinical study with Case Western Reserve,
Estée Lauder showed that poor sleep can double signs
of aging.
The solution? Advanced Night Repair Serum
with our exclusive Night Peptide.
It strengthens skin’s barrier. Intensely hydrates.
Visibly evens skintone and reduces the look of lines.

Pioneering Sleep Science:
Continuing The Legacy
A recent endowment from Estée Lauder has established an epigenetics fellowship at The University of California, Irvine in honor of the late Paolo Sassone-Corsi, PhD. Paolo worked with Estée Lauder to explore new discoveries in microRNA, epigenetics and circadian rhythms in connection with skin which inspired the technology in Advanced Night Repair Serum.
Night Transformation.
Morning Magic.
Morning Magic.
Wake up to your dream skin with
these nighttime powerhouses.

Skin cells never sleep. They repair.

Collagen Repair overnight

Intensive treatment for triple recovery
Every night is a new beginning.
Wake up glowing every day with this powerful regimen.
Discover the pioneering night science behind our iconic night products
Breakthrough Technology
Night Collagen Repair

The Night Edit
What happens to skin overnight?
Skin is biologically different from day to night. Every night, your skin repairs damage and re-energizes. It is also more prone to moisture loss and has a thinner, more fragile barrier. That’s why we recommend having a dedicated nighttime routine, made with ingredients that can deliver powerful renewing benefits overnight.
What are the benefits of sleep for skin?
Skin renews itself at night, and this process peaks while you sleep. Getting enough quality, uninterrupted sleep each night is essential in waking up with beautiful, glowing skin and helping prevent visible signs of aging.
What has Estée Lauder discovered about the connection between sleep and skin?
With 40 years of research and discoveries, our Estée Lauder scientists are experts in night sleep science. Our first-ever clinical study unveiled that sleep-deprived skin can experience a weaker barrier and dryness, loss of firmness, a more uneven skintone and increased lines.