Proof in Clinical Studies

Stay up-to-date on the latest clinical studies and information about Obagi and
skin care. For your convenience, we’ve included current and archived articles.
Browse by published year or by product line below.

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By Year By Product
All 2013 2012 2011 2010 2009 2008 2007 2006 2005

2013

Photographic Documentation of Improvement in Melasma in Darker Skin Using a 4% Hydroquinone Skin Care System Plus 0.05% Tretinoin Cream
Photographic Documentation of Improvement in Melasma in Darker Skin Using a 4% Hydroquinone Skin Care System Plus 0.025% Tretinoin Cream
Treatment of Moderate or Marked Melasma With a 4% Hydroquinone Skin Care System Plus 0.1% Tretinoin Cream: A Comparison Between Asian and Caucasian Patients

2012

Treatment of Moderate or Marked Melasma in Darker Skin with a 4% Hydroquinone Skin Care System Plus 0.05% Tretinoin Cream
Treatment of Mild or Moderate Melasma in Darker Skin with a 4% Hydroquinone Skin Care System Plus 0.025% Tretinoin Cream

2011

Treatment of Melasma with a Hydroquinone Skin Care System Plus Tretinoin

2010

Evaluating a Novel Rosacea Treatment System Containing a Cleanser, Metronidazole, Hydrating Complexion Corrector, and Sunscreen
Meta-analysis of Randomized Controlled Trials Using Benzoyl Peroxide and Clindamycin Topical Treatments in Acne
Evaluation of a Prescription Strength Hydroquinone/L-Ascorbic Acid Treatment System for Normal to Oily Skin

2009

Comparing a Novel Solubilized Benzoyl Peroxide Gel with Benzoyl Peroxide/Clindamycin: Final Data from a Multicenter, Investigator-Blind, Randomized Study

Presented at Summer Meeting of the American Academy of Dermatology, July 30 - August 1, 2009, Boston MA

Comparison of a 3-Step Acne System Containing Solubilized Benzoyl Peroxide versus Benzoyl Peroxide/Clindamycin: A Multicenter, Investigator-Blind, Randomized Study

Presented at the 67th Annual Meeting of the American Academy of Dermatology, March 6-10, 2009, San Francisco, CA

A Phototracking Study Documenting the Clinical Usefulness of a 3-Step Acne System Containing Solubilized Benzoyl Peroxide Lotion

Presented at Maui Derm, January 26-30, 2009, Maui, HI

Further Enhancement of Facial Appearance with a Hydroquinone/Tretinoin Skin care System in Patients Previously Treated with Botulinum Toxin type A: A Multicenter Investigator-masked Study

Presented at Summer Meeting of the American Academy of Dermatology, July 29 - August 2, 2009, Boston, MA

2008

Comparison of a 3-Step Acne System Containing Solubilized Benzoyl Peroxide Versus Benzoyl Peroxide/Clindamycin: A Multicenter, Investigator-Blind, Randomized Study (6-Week Analysis of Interim Data)

Presented at the Summer Meeting of the American Academy of Dermatology, July 30-August 3, 2008, Chicago, IL

Solubilized Benzoyl Peroxide Versus Benzoyl Peroxide/Clindamycin in the Treatment of Moderate Acne

Published July-August 2008

MedEsthetics. July/August 2008. Acne Treatment

Published July-August 2008

Evaluation of a Solubilized Benzoyl Peroxide Gel: A Pooled Analysis From 3 Randomized Investigator-Blinded Clinical Trials

Published April 2008

Comparison of a Novel Solubilized Benzoyl Peroxide Gel With Benzoyl Peroxide/Clindamycin: A Multicenter, Investigator-Blind, Randomized Study

Presented February 1-5, 2008

Comparing Facial Tolerability of a 3-Step Acne System Containing a Novel Solubilized 5% Benzoyl Peroxide Lotion for Normal to Dry Skin With That of a Benzoyl Peroxide/Clindamycin Combination Prescription Product

Presented February 1-5, 2008

Clinical Evaluation of a 3-Step Acne System Containing a Novel Solubilized Benzoyl Peroxide Formulation for the Treatment of Mild to Moderate Facial Acne Vulgaris

Presented February 1-5, 2008

Efficacy and Tolerability of a 3-Step Acne System Containing a Novel Solubilized Benzoyl Peroxide Lotion for Normal to Dry Skin Versus a Benzoyl Peroxide/Clindamycin Combination Product: An Investigator-Blind, Randomized, Parallel-Group Study

Presented February 1-5, 2008

Benefits of Using a Hydroquinone/Tretinoin Skin Care System in Patients Undergoing Intense Pulsed Light Therapy for Photorejuvenation: A Placebo-Controlled Study

Presented at the 17th Annual Meeting of the European Academy of Dermatology Venereology, September 19-20, 2008, Paris, France

Using a Hydroquinone/Tretinoin-Based Skin Health System Before and After Electrodessication & Curettage of Superficial Truncal Basal Cell Carcinoma: A Multicenter, Randomized, Investigator-Blind, Controlled Study

Published 2008

Using a 4% Hydroquinone/Tretinoin-Based Skin Care System in Conjunction With Facial Rejuvenation Procedures

Presented February 1-5, 2008

Evaluation of the Effect of a Novel Bi-Mineral Complex on Photoexposed Periorbital Skin
Aesthetic Trends & Technologies. May - June 2008. Sun Protection Product Listings

Published May - June 2008

Dermatology Times. July 2008. Facial Hyperpigmentation: Skin of Color Responds Well to OTC Hydroquinone and Non-hydroquinone Products

Published July 2008

Greater Stability and Absorption of Bioavailable Vitamin C In Two Optimized Formulations Compared With a Leading Competitor Formulation

Presented at the Summer Meeting of the American Academy of Dermatology, July 30-August 3, 2008, Chicago, IL

2007

Dermatology Times. February 2007. Novel BPO Formulation Faces Off with Commercially Available Products

Published February 2007

A Comparison of a Novel Benzoyl Peroxide System with a Combination Benzoyl Peroxide and Clindamycin Product: A 2-Week Split-Face Study of Effectiveness and Tolerability
A Comparison of Patterns of Deposition of Two Formulations of Benzoyl Peroxide on the Skin and in the Follicular Ostia as Visualized by Scanning Electron Microscopy
Evaluation of a Novel Acne Treatment System (CLENZIderm M.D.™) Designed to Enhance the Efficacy of Benzoyl Peroxide Treatment: An Investigator-Blind, Randomized Study
Cosmetic Dermatology. February 2007. Professional-C Serums Provide Antioxidant Therapy

Published February 2007

Treating Photodamage of the Décolletage Area with a Novel Copper Zinc Malonate Complex Plus Hydroquinone and Tretinoin

2006

Comparison of a Novel Benzoyl Peroxide Formulation and a Combination Benzoyl Peroxide/Clindamycin Gel in the Treatment of Acne Vulgaris: A Randomized, Double-Blind Clinical Trial

Presented Summer 2006

Improved Reduction in Propionibacterium Acnes Counts with a Novel 2.5% Benzoyl Peroxide Formulation Compared to a 2.5% Benzoyl Peroxide

Presented Summer 2006

A Novel Topical Benzoyl Peroxide Formulation Enhances P. Acnes Reduction

Presented March 2006

In Vitro Percutaneous Absorption of Topical Benzoyl Peroxide Formulations in Human Cadaver Skin

Presented March 2006

Evaluation of In-Vivo Antimicrobial Efficacy of Three Formulations Containing Benzoyl Peroxide on P. Acnes

Presented March 2006

Cosmetic Dermatology. April 2006. Efficacy of a Tretinoin/Hydroquinone-Based Skin Health System in the Treatment of Facial Photodamage

Published April 2006

Plastic Surgery News. February 2006. Obagi Awards Research Grant to ASPS

Published February 2006

2005

Clinical Evaluation of a Prescription Skin Therapy System Designed to Treat Facial Photodamage: Efficacy and Safety Comparison to 0.1% Tretinoin Regimen, 4% Hydroquinone Regimen, and Over-the-Counter (OTC) Regimen

Presented February 18-22, 2005