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Jan Marini Age Intervention Duality MD (10% Benzoyl Peroxide)


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  • Breakthrough acne solution
  • Provides serious acne control
  • Dramatic anti-aging benefits

1 oz


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Breakthrough Acne Treatment for Every Skin Type

Age Intervention Duality MD is a breakthrough anti-aging acne solution providing serious acne control and dramatic anti-aging benefits. Its unique dual chamber dispensing solution combines some of the most medically validated, yet previously incompatible, technologies in one product. The maximum allowed percentage of benzoyl peroxide, concentrated retinol, and powerful anti-aging technologies, including multiple peptides, anti-inflammatory agents, and antioxidants, are combined in a gentle formulation.

Age Intervention Duality MD Features & Benefits:

  • Delivers unparalleled acne treatment with dramatic anti-aging benefits
  • Helps decrease erythema and inflammation and reduces the appearance of acne scars and discoloration
  • Advanced Benzoyl Peroxide increases penetration and decreases dryness and irritation
  • Concentrated retinol improves cellular turnover and addresses the main signs of aging including the appearance of lines and wrinkles, rough texture, and hyperpigmentation
  • Anti-aging peptides rebuild and rejuvenate skin
  • Antioxidants deliver anti-aging benefits and increase free radical protection
  • Significant moisturizers for improved hydration and barrier function
  • Easily incorporates into Step 3 of the Skin Care Management System for intensified results
  • A perfect solution for adults and of every skin type

Ingredient Highlights:

  • 10 % Ultra-Micronized Benzoyl Peroxide
  • All-Trans-Retinol (1%)
  • Anti-Aging Peptides
  • Green Tea Extract
  • Chrysin
  • Alpha-Bisabolol
  • NHS (N-Hydroxysuccinimide)
  • Hyaluronic Acid

Frequently Asked Questions

What is the difference between the Duality MD and Duality non-MD versions?
The difference between Duality and Duality MD is the Retinol percentage. The Jan Marini Duality MD contains 1% strength Retinol, the Age Intervention Duality non-MD contains 0.5% Retinol.

What is Jan Marini Duality MD, and what does it do?
Jan Marini Duality MD is a revolutionary skincare product designed to target multiple skin concerns simultaneously. It combines retinol, peptides, and antioxidants to address acne, signs of aging, hyperpigmentation, and overall skin texture. This dual-chambered product delivers potent ingredients to maximize efficacy and results.

How do I incorporate Jan Marini Duality MD into my skincare routine?
Duality MD should be used in the evening after cleansing and toning your skin. Dispense an equal amount from both chambers and blend together before applying a thin layer to your face and neck. Begin by using it every other night, gradually increasing frequency as tolerated. Always follow with a moisturizer and use sunscreen during the day, as retinol can increase sun sensitivity. This product is not a spot treatment, it should be applied all over your face, or the areas with acne.

Should I apply a moisturizer with Duality MD?
Yes. This product is formulated with active ingredients that might dry your skin so a moisturizer will help keep your skin moist. Apply a thin layer of Transformation Face Cream after Duality.

What other Jan Marini products are recommended for acne?

Try Jan Marini Duality MD and let the power of Retinol and Benzoyl Peroxide help improve and clear your acne!


How to use: Clean the skin thoroughly before applying this product. This product contains two parts. Dispense equal quantities of product from each of the two pumps, then briefly mix the two parts together on your palm. Cover the entire affected area with a thin layer one to three times daily. Because excessive drying of the skin may occur, start with one application daily, then gradually increase to two or three times daily if needed or as directed by a physician. If bothersome dryness or peeling occurs, reduce application to once a day or every other day. If going outside, apply sunscreen after using this product. If irritation or sensitivity develops, stop use of both products and ask a physician.

For external use only. Keep out of reach of children. Avoid contact with eyes. If excessive irritation develops discontinue use and consult your physician.

You must use sun protection while using this product.

Anti-Acne Cream:
Active Ingredient: Benzoyl Peroxide 10%

Inactive Ingredients: Water/Aqua/Eau, Propylene Glycol, Glycerin, Sorbitol, Polyacrylamide, C13-14 Isoparaffin, Cyclopentasiloxane, Cyclohexasiloxane, Carbomer, Laureth 7, Disodium EDTA, Triethanolamine, Diazolidinyl Urea, Methylparaben, Propylparaben.

Anti-Aging Face Cream
Water/Aqua/Eau, Caprylic/Capric Triglyceride, Glycerin, Cyclopentasiloxane, Glyceryl Stearate, Polysorbate 20, Carthamus Tinctorius (Safflower) Seed Oil, Butyrospermum Parkii (Shea) Butter, Polysorbate 60, Stearic Acid, Stearyl Alcohol, Cyclohexasiloxane, Retinol, Myristoyl Tripeptide-4, Sorbitol, Bisabolol, Sodium Hyaluronate, Camellia Oleifera Leaf Extract, Palmitoyl Tetrapeptide-7, Palmitoyl Oligopeptide, Chrysin, Dimethicone, Dimethicone/Vinyl Dimethicone Crosspolymer, Glyceryl Acrylate/Acrylic Acid Copolymer, Steareth-20, N-Hydroxysuccinimide, Triethanolamine, Carbomer, Hexylene Glycol, Ethylhexylglycerin, Caprylyl Glycol, BHT, Phenoxyethanol.

Ingredients may change, refer to packaging for the most current information.

Weight 4.6 oz
  • 1 oz.

Skin Type
  • Acne Prone

  • Combination
  • Congested
  • Oily
Product Type
  • Acne Treatment

  • Face Treatments & Serums
  • Oil Control
  • Skin Resurfacing
  • Acne/Blemish

  • Aging Skin
  • Back Acne
  • Blackheads
  • Congested Pores
  • Crepey Skin
  • Hormonal Acne
  • Irregular Texture
  • Large Pores
  • Loss of Skin Firmness
  • Oiliness
  • Prevention
  • Rough Skin
  • Skin Laxity
  • Uneven Tone
  • Wrinkles
Ingredient Preference
  • Benzoyl Peroxide

  • Green Tea Extract
  • Hyaluronic Acid
  • Medical Grade
  • Peptides
  • Retinol
  • Cream


Jan Marini Skin Research, Inc. is a recognized leader and innovator in skin care products that deliver proven measurable results. Their products contain medical-grade active ingredients such as antioxidants, retinol, glycolic acid, salicylic acid, and hyaluronic acid among others. Jan Marini products are designed to work together to address skin concerns such as acne, hyperpigmentation, skin aging, wrinkles, loss of firmness, uneven texture, and sun damage. The Jan Marini Skin Care Management System has won the “New Beauty Best Anti-Aging Skin Care System” every year.

Rejuvent Skincare is an authorized Jan Marini reseller and sells 100% authentic Jan Marini products. Shop Jan Marini.

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5 out of 5 stars

2 reviews

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What others are saying

  1. Will buy over and over again!

    E. L.

    1- How is your skin? Oily in the t-zone

    2- What is your skin's complexion? Fair

    3- How are your pores? Large and clogged

    4- How is the weather where you live? The weather is dry

    I have struggled with adult breakouts and am always on the hunt to find something that works that does not fry me out! And I have finally found it in this! Even tho it has retinol-it does not dry me out and really helps my complexion and all over texture. Almost done with my first bottle and ready to order the next!

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  2. Less breakouts for sure


    1- How is your skin? Oily all over

    2- What is your skin's complexion? Medium

    3- How are your pores? Mostly large

    4- How is the weather where you live? The weather is dry

    I have hormonal acne. I am on a system with a cleanser Vit C and glycolic, now I added this Duality product. I can see a difference and have less breakouts. I only use it 3 times a week because if I use it everyday it dries my skin too much but this has helped a lot. It is now part of my routine. Thanks doc Bomer for sharing with me how you use this.

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