Packaging for Brighten Up Vitamin C Serum by Ursa Major Skincare

Brighten Up Vitamin C Serum

Rated 4.5 out of 5 stars
4.5 Stars (1,342 Reviews)
This potent form of Vitamin C helps boost glow, lighten dark spots that crop up from sun or acne, and deliver lightweight hydration throughout the day. (Plus it smells like a sunny day full of fresh-squeezed citrus and roses.)
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Rated 4.5 out of 5 stars
4.5 Stars (5,905 Reviews)

Why It's Special

Turn up the brightness

Whether your skin feels lackluster or you’re noticing more dark spots, this concentrated form of Vitamin C (plus other powerhouse plant actives) lighten and brighten to keep your glow going strong. 

Effective to the last drop

Frightening fact: most Vitamin C serums aren’t potent by the time they get to your shelf. Ours uses a highly stable form of Vitamin C, so when you put it on your face—you’re getting peak effectiveness.

Naturally radiant

Plant actives like Aspen Bark (a source of BHA) gently renew your skin, while Aloe and Rose soothe and reduce redness. The result: an even, all-around radiant complexion.

Your SPF’s BFF

A fast-absorbing featherweight texture makes this serum the perfect hydrating step under SPF (or a non-pilling primer under makeup). 

Refreshingly Different

Nothing to hide here. Just naturally awesome ingredients that help you achieve your healthiest, happiest skin.

Highly potent

Boosts radiance

Evens skin tone

Clean ingredients

Certified Plastic Negative

Vegan & cruelty-free

“Instant hydration, relief from inflammation, and a radiant complexion.”


“Retains its potency far longer than traditional vitamin C.”


“No joke: This natural vitamin C is just as potent as the ones in a derm’s office”


“Your friends will notice a visibly ‘brighter’ complexion.”


“Combats dullness and hyperpigmentation like nobody's business.”


Pure, Powerful Ingredients

Formulated without petrochemicals, sulfates, parabens, synthetic fragrances, or other suspect chemicals.

Ascorbic Acid Polypeptide

A stable form of Vitamin C that helps brighten and improve the skin’s appearance, tone and texture


A stem cell complex with robust antioxidant properties

Rose Hip

High in Vitamin C; hydrates skin and minimizes the appearance of dark spots and scars

Aspen Bark

Natural source of salicylic acid (beta hydroxy acid); gently exfoliates and soothes skin


Soothes and hydrates


Reduces the appearance of redness

Click or tap on an ingredient to learn more

How to Use

Apply 1 pump to clean, dry skin. Use alone as a lightweight moisturizer or layer beneath your favorite face lotion, sunscreen or night cream. 


Q: Is Vitamin C, Mountain Glow, or Lunar Bloom (or all three) the serum for me?

A: Good question! Whether you use one, two, or all three serums is totally up to your own skincare goals and routine preferences.

Brighten Up Vitamin C Serum is our lightweight and layerable brightening treatment, designed to target hyperpigmentation, even out skin tone, and give dull skin that extra boost of radiance.

Mountain Glow Golden Serum is our do-it-all super-serum designed to deeply nourish and restore lasting moisture to your skin, combat visible signs of aging, and reveal a healthy, dewy glow.

For PM use only, Lunar Bloom Retinal Serum is a supercharged powerhouse that helps rewind the look of fine lines and wrinkles while you sleep. It works by promoting renewal and boosting collagen in mature or lackluster skin. 

If you opt for using all three serums, our recommendation would be to use Vitamin C in the morning and layer Mountain Glow over Lunar Bloom at night, or alternate between these two serums every other night.

If you want more help with your decision, check out our Skincare Quiz or drop us a message. 

Q: How and when do I use this product? 

A: For best brightening results and combating of free radical damage, apply this serum to clean, dry skin before moisturizing. 

Pair Vitamin C with Force Field SPF 30 before heading outdoors to treat the skin you’re in, while protecting it against future harm.

Q: Is this product suitable for sensitive skin?

A: Because we decided to go just slightly below the maximum ingredient dosage, our Vitamin C Serum retains all the power without risking unnecessary irritation. Of course, as with any product, if you have extra-sensitive skin, we might recommend doing a patch test to check before applying to the full face. 

Unlike other Vitamin C serums, Brighten Up Vitamin C does not cause photo-senstivity, but we absolutely encourage pairing with an SPF before heading outdoors!

Q: What is the percentage / concentration of Vitamin C?

A: We formulated our Vitamin C Serum with ascorbic acid polypeptide, a version of Vitamin C that retains its potency far longer than traditional formulas. It's in there at a concentration of 1.5% (the maximum dose for this ingredient is 2.0%). We decided to go just slightly below that maximum to avoid any unnecessary irritation without sacrificing efficacy. 

Q: Is there any chance of oxidation?

A: We’ve conducted rigorous testing of this product efficiency and ingredient stability prior to launch to ensure that your serum is totally fresh when it reaches your hand. This serum is protected against any potential degradation thanks to special UV-coated glass packaging. We also chose a stabilized version of Vitamin C (ascorbic acid/orange/citrus limon/citrus aurantifolia polypeptide) and added additional antioxidants like rosemary extract to further delay oxidation.

Q: How do I recycle this product? 

A: When you run out, just give the glass container a rinse and recycle it at home. The plastic pump is mixed material and cannot be recycled at this time. 

Q: What is the aroma?

A: Fresh-squeezed citrus topped with herbaceous rose hip and a hint of sour rose.

Brighten Up Vitamin C Serum Reviews

Rated 4.5 out of 5 stars
Based on 1,342 reviews
1,342 reviews
  • Annamaria
    I recommend this product
    Rated 5 out of 5 stars
    5 Stars

    Ursa Major is one of the best products I have found in a long time. It does exactly what they claim, I love this Brighten Up Vitamin C Serum and I will be ordering from them again.

  • Brenda B.
    Verified Buyer
    I recommend this product
    AGE RANGE 50's+
    SKIN TYPE Balanced
    SKIN CONCERN Redness / Irritation
    Rated 5 out of 5 stars
    Brighten Up Vitamin C Serum

    Love this stuff!!!!

  • Ketaki B.
    Verified Buyer
    I recommend this product
    AGE RANGE 50's+
    SKIN CONCERN Fine Lines
    Rated 5 out of 5 stars
    Excellent product

    Gentle on the skin and didn't cause any breakouts typical of vitamin C products!

  • Alison S.
    Verified Buyer
    I recommend this product
    AGE RANGE 50's+
    SKIN TYPE Combo
    SKIN CONCERN Fine Lines
    Rated 5 out of 5 stars
    Vitamin C serum

    Love it

  • Donnie C.
    Verified Buyer
    I recommend this product
    AGE RANGE 50's+
    SKIN CONCERN Dryness
    Rated 5 out of 5 stars
    Recurring customer

    I really like this serum.. The spots have faded and my skin looks great for 73!

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