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Ultima C Serum

Ultima C Serum

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Targeted vitamin C skin brightening serum

Rated 4.8 out of 5 stars
32 Reviews

1 oz

Regular price $88.00
Regular price Sale price $88.00
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New! 15% Vitamin C brightening and plumping serum is combined with hyaluronic acid to visibly reduce the appearance of dark spots and improve skin tone for a smoother and brighter complexion. This unique dual action serum combines the 2 holy grails of skincare: vitamin C and hyaluronic acid. Vitamin C helps brighten skin, increasing luminosity and improving skin texture by up to 28%*. Combined with the power of hyaluronic acid to increase skin firmness, while visibly reducing fine lines and wrinkles by up to 35%*. The unique formula is also infused with powerful botanical antioxidants such as anti-inflammatory Goji Berry and Green Tea, anti-aging Kakadu Plum, organic Marunga, and gentle Hibiscus Flower to promote a healthy and glowing complexion while warding off signs of premature aging.

Skin Concerns: Dark Spots, Dryness, and Dullness, Loss of firmness and elasticity

* 6 week perception study of women 25-65 

VITAMIN C: {Magnesium Ascorbyl Phosphate/ 3-Glyceryl Ascorbate} Pharmaceutical grade vitamin C, stabilized to allow for up to 48 hours of potency and maintaining maximum efficacy in skin radiance and luminosity. 

Hyaluronic acid: well known for its skin benefits, especially alleviating dry skin, reducing the appearance of fine lines and wrinkles

Hibiscus Flower Extract: Packed with anti-aging plant actives, Hibiscus is recognized for increasing skin elasticity. It also has a gentle exfoliating effect due to its naturally occurring organic acids which helps stimulate cell turnover, resulting in a more even-looking skin tone

Goji Fruit Extract: Naturally rich in vitamin C, polysaccharides, flavonoids betaine to reduce inflammation and sun-induced pigmentation (hyperpigmentation)

Kakadu plum: Recognized as the world’s highest source of vitamin C and packed with antioxidants Naturally rich in vitamins C and E which reverses the effects of free radicals and reduce the symptoms of aging. 

Skin Type: Oily, Normal, Acne-Prone, Combination, Sensitive, and Dry

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• Increase radiance
• Refine skin texture
• Improve skin tone
• Plumps skin with hydration
• Reduces the appearance of dark spots, pores, and wrinkles.
• 35% increase skin hydration*
• 28% improvement in skin roughness*
• 29% Improvement in skin luminosity*

* 6 week perception study of women 25-65

How to use

Apply evenly to cleansed face and neck daily. SPF use recommended.


Aqua (Water), Magnesium Ascorbyl Phosphate (vitamin C), 3-Glyceryl Ascorbate (vitamin C), Propanediol, Pentylene Glycol, Xanthan Gum, Lecithin, Sclerotium Gum, Pullulan, Caprylhydroxamic Acid, Caprylyl Glycol, Glycerin, Hyaluronic Acid, Hibiscus Sabdariffa (Hibiscus) Flower Extract, Lycium Barbarum (Goji) Fruit Extract, Camellia Sinensis (Green Tea) Leaf Extract, Terminalia Fernandiana (Kakadu Plum) Fruit Extract, Tetrasodium Glutamate Diacetate, Sodium Bisulfite, Pelargonium Graveolens (Geranium) Flower Oil, Rosemarinus Officinalis (Rosemary) Leaf Extract, Hydrolyzed Gardenia Florida Extract, Maltodextrin, Sodium Hydroxide.

Sonya Dakar skincare innovations are formulated with natural ingredients


Every Sonya Dakar Innovation is created to be natural, effective, and good for the environment. Learn more about our commitment to clean products and a green planet.

Rated 4.8 out of 5 stars
Based on 32 reviews
Total 5 star reviews: 27 Total 4 star reviews: 5 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
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32 reviews
  • NG
    Natalya G.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 months ago
    Finally got my hands on it

    I only got this a week ago and so far love the way my skin looks and feels after it! I already see the glow and more even surface. My spots seem to be becoming more fain as well. Hoping they go away after using this for longer!

  • DG
    Dallas G.
    Verified Buyer
    I recommend this product
    Rated 4 out of 5 stars
    3 weeks ago
    Love all things Sonya Dakar

    Just got this serum last week it - sometimes vitamin C breaks me out but this hasn't cause a break a week in. It gentle but affective ~ that why I LOVE anything Sonya Dakar!!

  • CR
    Carla R.
    Verified Buyer
    I recommend this product
    Rated 4 out of 5 stars
    5 months ago
    Haven't used it long enough

    Haven't used it long enough to notice a change, but it's definitely hydrating and that's something we can all appreciate!

  • A
    I recommend this product
    Rated 5 out of 5 stars
    6 months ago

    I absolutely love this product, I've been using it since it first came out. My skin is so soft and glowing when I use it consistently!

  • MA
    Melissa A.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    7 months ago
    Love, love! Vitamin C is

    Love, love! Vitamin C is a game changer.

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