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The OUMERE April Edition Arrives April 1st, 2026. Quantities Limited

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No. 9 Daily Liquid Exfoliant

95.00
Volume
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No. 9 Daily Liquid Exfoliant

95.00

Step I of the OUMERE Protocol

This is where the system begins.

Acquire The Collection Start with the Travel Set
Step I — Calibrated Renewal

No. 9

As skin ages, its natural renewal slows. Dead cells remain on the surface longer than they should, forming a barrier that limits what any treatment can reach. No. 9 restores that rhythm — clearing the way for everything that follows in the OUMERE Protocol.

A daily liquid exfoliant. Alpha- and poly-hydroxy acids, calibrated to work together. Hand-compounded in limited monthly editions in our private Palm Beach laboratory.

oumere no.9

The Biology of Renewal

Surface Preparation

Healthy skin renews itself on a cycle. When that cycle slows — through age, damage, or environmental stress — dead cells accumulate on the surface. No. 9 dissolves the bonds between them, restoring the skin's ability to release what it no longer needs.

Multi-Acid Precision

Lactic acid, mandelic acid, lactobionic acid, and gluconolactone — each operating at a specific depth and pH range. Together they provide layered renewal that a single acid cannot achieve, while preserving the acid mantle and barrier integrity.

Botanical Intelligence

Mulberry, goldenseal, licorice root, willow bark, and rooibos — selected through research for their roles in clarity, tone, and resilience. Some of these extracts, in the concentrations and preparations used here, are found only in OUMERE.

Formulation Principles

The decisions behind what goes into No. 9 — and what stays out.

No Hyaluronic Acid

Topical HA draws moisture from the deep dermis to the surface, where it's lost to evaporation. OUMERE takes a different approach — calibrated AHAs that support the skin's own natural moisturizing factor production. Hydration that originates from within and remains.

No Vitamin C

L-Ascorbic Acid is inherently unstable. It oxidizes readily — both in formulation and on the skin — and in its oxidized state functions as a pro-oxidant. OUMERE's antioxidant strategy relies on stable, research-backed botanical compounds delivered in the appropriate phase of the protocol.

Hand-Compounded

No. 9 is formulated and produced in the OUMERE private laboratory in Palm Beach. Each monthly edition is compounded individually — preserving the biological potency of every botanical extract in a way that industrial processing cannot.

Laboratory Glass

Every OUMERE product is bottled in inert glass. Plastic packaging allows chemical migration into active formulas — a compromise that has no place in a laboratory-grade formulation.

The Ritual

Apply to clean, dry skin. Use 3 to 7 times weekly. Allow up to 30 minutes before applying Step II — the longer No. 9 sits, the more thorough the renewal.

New to chemical exfoliation? Start with 5 to 10 minutes and build gradually over one month. The skin acclimates. The results compound.

Full INCI: Aloe Barbadensis Leaf Juice, Water (Aqua), Propanediol, Lactic Acid, Mulberry Extract, Goldenseal Extract, Licorice Root Extract, Glycerin, Apple Cider Vinegar, Willow Bark Extract, Rooibos Extract, Lactobionic Acid, Gluconolactone, Mandelic Acid.

About No. 9

OUMERE No. 9 is a hand-compounded daily liquid exfoliant created by cellular biologist Wendy Ouriel in the OUMERE private laboratory in Palm Beach, Florida. It is the first step of the OUMERE Protocol — a complete anti-aging skincare system built on biological research, individually hand-compounded, and released in limited monthly editions.

The formula combines lactic acid, mandelic acid, lactobionic acid, and gluconolactone with mulberry extract, goldenseal, licorice root, willow bark, and rooibos — botanical actives selected through years of cellular biology research for their roles in skin clarity, tone evenness, and barrier resilience. No. 9 is suitable for all skin types when introduced gradually.

Produced in limited volume, bottled in laboratory glass, and shipped directly from the OUMERE laboratory. No fragrance. No essential oils. No drying alcohols. No hyaluronic acid. No vitamin C.

For most, OUMERE is the last skincare they will ever need. For many, it is the first that actually worked.

"Skincare is a biological system, not a shopping list. You cannot remove one piece and expect the architecture to stand."

Proceed to Step II: UV-R →

OUMERE products are formulated for cosmetic use, focusing on the visible health and aesthetic quality of the skin. They are not intended to diagnose, treat, or cure any medical condition.

No. 9 should only be used with OUMERE products to avoid irritation and to experience the most powerful and profound anti-aging results. Apply several drops onto a cotton pad. For those with sensitive skin or skin not used to chemical exfoliation, add equal parts water to cotton pad to dilute. Beginning at the forehead, pat cotton pad gently onto face, neck, and décolleté. Do not rub product into skin as this can cause irritation. There is no need to rinse product off, No. 9 will cease exfoliating after approximately 30 minutes when your skin naturally returns to its normal pH level. Wait at least one minute before applying additional products. The longer No. 9 stays on skin before applying next product, the more exfoliation your skin will experience.

LACTIC ACID

Powerful, yet non-irritating alpha hydroxy acid with moisturizing properties.

MANDELIC ACID

Alpha hydroxy acid derived from almonds. Mandelic acid is effective for improving appearance of acne-prone skin.

LACTOBIONIC ACID

Poly hydroxy acid with anti-inflammatory properties, and gentle exfoliating capabilities.

GLUCONOLACTONE

Poly hydroxy acid that gently exfoliates skin

APPLE CIDER VINEGAR

Alpha hydroxy acid that gently exfoliates and brightens skin.

WILLOW BARK EXTRACT

Natural source of the beta hydroxy acid, salicylic acid, which has been shown to reduce the appearance of acne.

GOLDENSEAL (INDIAN TURMERIC) EXTRACT

Naturally improves the appearance of acne and inflammation. Made from fresh (not powdered) goldenseal grown in the United States.

MULBERRY EXTRACT

Mulberry contains one of the highest concentrations of resveratrol found in nature. Resveratrol has the ability to bring aged skin back to a youthful appearance.

GRAPE SEED EXTRACT

To brighten and restore tired skin, and is excellent for those with sensitive and irritated skin.

LICORICE ROOT EXTRACT

Naturally brightens and soothes appearance of irritated skin.

INGREDIENTS
Aloe barbadensis leaf juice*, water*, propanediol*, lactic acid*, mulberry extract*, goldenseal (Indian turmeric) extract*, Glycyrrhiza glabra (licorice) extract*, glycerin*, apple cider vinegar*, aloe barbadensis Miller*, mulberry extract*, willow bark extract*, grapeseed extract*, lactobionic acid*, citric acid*, sodium salicylate*, gluconolactone*, sodium benzoate*, calcium gluconate*, mandelic acid*

 * Natural Origin

See the laboratorial data results from OUMERE Labs on the anti-aging effects of No. 9 here Customers who use No. 9 report the following effects:

  • Improved appearance of fine lines
  • Improved appearance of skin firmness
  • Improvement of appearance of acne
  • Improved appearance of skin oil levels

When first using No. 9 do a patch test on wrist to see if irritation occurs. Wait at least an hour and examine skin for redness or irritation. If irritation occurs discontinue use and consult a doctor. Not suitable for those under 18 years of age. Do not use with burned, irritated, or medicated skin. Do not use in conjunction with retinoic treatment or Vitamin C serums. External use only. Do not apply immediately after shaving. Wait at least 4 hours after shaving to apply No. 9 to avoid irritation. May increase sun sensitivity, avoid immediate and unprotected sun exposure. Wear sunscreen when using this product. Avoid contact with eyes and eye creases. If contact with eyes occurs, flush with plenty of water for several minutes and consult a medical care professional. Skin Purging may occur when first using the No. 9 Exfoliant.

Customer Reviews

Based on 40 reviews
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N
Nancy Hyman
LOVE!

After years of over-roughness of products I have found the perfect product to keep skin exfoliated, not damaged. I use it twice daily as I am acclimated to it.

E
E.Y.

Best in class!

J
Jalela

This is the best product I have ever used for my skin. I love the new bottle design.

A
Andrea Hernandez
One of the Best!

This is my go to chemical exfoliant! I do however have very thin, sensitive skin. So when I use this product I have to dilute it slightly. But since I've started doing that, I can use it on a more consistent basis. And the results speak for themselves. My skin looks rejuvenated, less irritated & lastly more even toned. I very much appreciate and value this product!

M
M Leones
LOVE THIS PRODUCT!

I love this product so much! I bought this most recent bottle for my daughter who is in her 20s. It has done so much for her skin! No more breakouts or blackheads. Just fine pores and clarity! We are so grateful to buy skin care that actually works!