Eighth Day skincare

Rated by Lovi · Unbiased, science-based skincare AI trained on real user outcomes · How the Fit score works

Eighth Day is an American skincare brand founded in 2021.

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Eighth Day is cherished for its targeted serums and meticulously crafted formulas. Its products suit mature, dry, and sensitive skin types best. The standout products for particular concerns include the Regenerative Serum for acne-prone skin. These thoughtful formulations work to elevate the daily skincare ritual.

This page covers some of the most popular Eighth Day products; for the whole Eighth Day range, with a fit score for every product, use the Lovi app.

Eighth Day serums and treatments

Regenerative Serum

Questions and answers

Is Eighth Day worth it?

Yes, Eighth Day is worth it because Lovi rates the Eighth Day-focused routines Superior for dry, oily, sensitive, combination, and acne-prone skin. Every product by Eighth Day on this page is fragrance-free.

What are Eighth Day's best products?

Regenerative Serum is the Eighth Day product on this page, and Lovi rates it High for dry and mature skin and Average for oily and sensitive skin. Every Eighth Day product on this page lists no fragrance in its ingredients.

Does Eighth Day cause breakouts?

Eighth Day is unlikely to cause breakouts, and Lovi rates the Eighth Day-focused routine Superior for oily and acne-prone skin. Every product on this page lists no fragrance in its ingredients, which helps keep the skin calm.

Is Eighth Day fragrance-free?

Yes, every one of the Eighth Day products on this page lists no fragrance in its ingredients.

What are the key ingredients in Eighth Day products?

Eighth Day features key ingredients such as sodium hyaluronate, niacinamide, and glycerin to help hydrate and smooth the skin. Sodium hyaluronate and glycerin support moisture retention and barrier function, while niacinamide helps improve signs of aging and uneven skin tone.

Clinical, Cosmetic and Investigational Dermatology, 2017 Antioxidants, 2021

How do I build a Eighth Day skincare routine?

To build an Eighth Day skincare routine, you start by applying the Regenerative Serum. Lovi rates this routine Superior for dry, oily, sensitive, combination, and acne-prone skin. Every Eighth Day product on this page is fragrance-free.

What are good alternatives to Eighth Day?

CeraVe, Cetaphil, Paula's Choice, Neutrogena, Kiehl's, and Dermalogica are good alternatives to Eighth Day on Lovi.

Eighth Day vs CeraVe: which is better?

Eighth Day is better for dry skin, where Lovi rates the Eighth Day-focused routine Superior compared to High for CeraVe. For oily, sensitive, combination, and acne-prone skin, both routines reach a Superior level.

Is Eighth Day cruelty-free?

PETA, Leaping Bunny, and Cruelty Free International, the registries Lovi checks, do not list Eighth Day as cruelty-free.

4 more questions

Research behind Eighth Day's key ingredients

Hyaluronic acid and wound healing
Sodium hyaluronate · Journal of Pharmacy & Pharmaceutical Sciences, 2015
The effect of niacinamide on reducing cutaneous pigmentation and suppression of melanosome transfer
Niacinamide · The British Journal of Dermatology, 2002
Mechanistic Basis and Clinical Evidence for the Applications of Nicotinamide (Niacinamide) to Control Skin Aging and Pigmentation
Niacinamide · Antioxidants, 2021
Benefits of topical hyaluronic acid for skin quality and signs of skin aging: From literature review to clinical evidence
Sodium hyaluronate · Dermatologic Therapy, 2022
The effects of a topical gel containing chitosan, 0,2% chlorhexidine, allantoin and despanthenol on the wound healing process subsequent to impacted lower third molar extraction
Allantoin · Medicina Oral, Patologia Oral Y Cirugia Bucal, 2016

11 more studies

Randomized controlled study for the anti-aging effect of human adipocyte-derived mesenchymal stem cell media combined with niacinamide after laser therapy
Niacinamide · Journal of Cosmetic Dermatology, 2021
The 24-hour skin hydration and barrier function effects of a hyaluronic 1%, glycerin 5%, and Centella asiatica stem cells extract moisturizing fluid: an intra-subject, randomized, assessor-blinded study
Glycerin · Clinical, Cosmetic and Investigational Dermatology, 2017
The anti-wrinkle efficacy of argireline, a synthetic hexapeptide, in Chinese subjects: a randomized, placebo-controlled study
Acetyl hexapeptide-8 · American Journal of Clinical Dermatology, 2013
Senomorphic activity of a combination of niacinamide and hyaluronic acid: correlation with clinical improvement of skin aging
Niacinamide · Scientific Reports, 2024
Efficacy of a topical gel containing chitosan, chlorhexidine, allantoin and dexpanthenol for pain and inflammation control after third molar surgery: A randomized and placebo-controlled clinical trial
Allantoin · Medicina Oral, Patologia Oral Y Cirugia Bucal, 2020
Anti-Wrinkle Efficacy of Cross-Linked Hyaluronic Acid-Based Microneedle Patch with Acetyl Hexapeptide-8 and Epidermal Growth Factor on Korean Skin
Acetyl hexapeptide-8 · Annals of Dermatology, 2019
Repair of acetone- and sodium lauryl sulphate-damaged human skin barrier function using topically applied emulsions containing barrier lipids
Phytosphingosine · Journal of the European Academy of Dermatology and Venereology, 2002
Supramolecular collagen nanoparticles for anti-wrinkle, skin whitening, and moisturizing effects
Palmitoyl tripeptide-5 · Colloids and Surfaces. B, Biointerfaces, 2025
The anti wrinkle efficacy of synthetic hexapeptide (Argireline) in Chinese Subjects
Acetyl hexapeptide-8 · Journal of Cosmetic and Laser Therapy, 2013
Efficacy and Tolerability of Stable Hybrid Cooperative Complexes of High- and Low-Molecular Weight Hyaluronic Acid in Asian Patients: An Open-Label Study
Hydrolyzed hyaluronic acid · Aesthetic Plastic Surgery, 2026
Investigating the Effects of a Manuka Honey, Royal Jelly, and Bee Venom-Derived Face Serum on Skin Health and Signs of Aging
Manuka honey · Cureus, 2025

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Behind these ratings

Lovi rates every product from its full ingredient list with brand-independent rules our dermatologists and cosmetic chemists build and review, and personalizes every pick with AI trained on the real results of millions of users. Lovi trains its fit score models on a proprietary dataset built from more than 10,000 expert-labeled products and more than 100,000 simulated examples, following an internally consistent methodology presented at Cosmoprof, AMWC, and Skin of Color Update.

Nadia Kapleva, MS

Co-founder, Medical Director

Cosmetic chemist, cosmetologist, aesthetic products developer
Alexey Shagraev, PhD

Co-founder, CEO and CTO

PhD in computer science, 3x US patent holder, ex-Google, ex-Yandex
Dr. Sofía Perea Pérez, MD, MSc

Medical Board

Aesthetic medicine practitioner, MSc in Longevity and Anti-Aging Medicine
Aishani Shah, MD

Medical Board

Specialist dermatologist, MBBS, MD, IFAAD
Asya Zubkova, MS

Medical Board

Cosmetic chemist, SCS, IFSCC member
Hanna Kurets, MD

Medical Board, Medical Advisor

Dermatology MD
Elina Nazarenko, MD

Medical Board

Dermatology and diagnostic consultant
Victoria Derkova, MS

Medical Board

Cosmetic chemist, cosmetic development technologist