Cosmetic & Laser Surgery Institute | Skin Renewal Program
Led by Dr. Diana Parnell, dermatology practice located in Marin County, CA offering the latest in medical and cosmetic dermatology
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Skin Renewal Program

Our skin renewal program is the first step in restoring your skin to a healthy state. It was designed to aid in the treatment of photoaging including  lentigines (sun or liver spots) and fine wrinkles, pigmentation due to hormones and other abnormal pigmentation, pre-malignant skin changes and acne.  It is used to treat both men and women of all skin types and color. This program can be used on the face as well as other areas of the body, such as the neck, chest, and hands.


The skin renewal program utilizes a vitamin A derivative (Retin A), in combination with a bleaching cream (hydroquinone), an alpha hydroxy acid (glycolic acid ), yerba santa (a penetrating agent), and a sunscreen. Facial wash and toner are other important components of the program.

Y.S. Creams

This program is designed to aid in the treatment of:


Precancerous skin changes

Increased pigmentation caused by estrogen (hormones)

Sun/Liver Spots

Abnormal pigmentation spots

Fine Wrinkles


Other Products Offered

  • Y.S. One Facial Wash
  • Y.S. Dermfresh Toner
  • Obagi Clear
  • Obagi Hydrate Facial Moisturizer
  • Obagi Hydrate Luxe
  • MouthKote for dry mouth
  • Pretz for dry nasal passages
  • Obaji 360 Exfoliating Cleanser
  • Mouthkote: 2 and 8 oz., mouth spray that relieves dry mouth with Yerba Santa and xylitol which studies show relieves dry mouth and prevents dental caries.
  • MouthKote R: remineralizing mouth rinse, which studies show, relieves dry mouth and remineralizes tooth enamel with bio-available calcium and phosphate, natural Yerba Santa and xylitol.
  • Pretz Nasal Spray: Preservative free sterile nasal spray with natural sea salt, glycerin and Yerba Santa. Prevents dry nose and helps prevent nosebleeds.


Latisse® is the first and only approved prescription product proven to grow eyelashes longer, thicker, and darker. Latisse is believed to lengthen the growing phase of the eyelash cycle which increases the number and percentage of hairs in that cycle. It is applied with a sterile, disposable applicator to the base of the upper eyelashes at bedtime. Most patients experience longer, thicker lashes in as little as eight weeks and see significant improvement by 12 to 16 weeks. Maintenance therapy is required to continue this effect. Latisse is safe and ready to use.

Let our medical staff show you what Latisse is all about and how to use it. You do not need to pay for an office visit in order to get started.



Unopened products may be returned for a full refund within 30 days of purchase. Used products may be returned only in the rare event of allergic contact dermatitis. Please note that Retin-A (tretinoin) is irritating and may cause redness and peeling. Stinging and irritation may occur with YS products, but these symptoms do not indicate allergy. We will be happy to evaluate any problems.