Ursa Major Lunar Bloom Retinal Serum, a moisturizing facial serum containing retinal, four o'clock flower, gardenia, and ceramides. The serum is shown in both a bottle and a box.

Lunar Bloom Retinal Serum

4.7
Rated 4.7 out of 5 stars
4.7 Stars (209 Reviews)
A light-as-air nighttime serum for your most youthful, luminous skin yet. 

Powered by Retinal—a skin-supercharging vitamin A derivative—plus micronutrient-rich forest actives and night-blooming flowers. Lunar Bloom Retinal Serum is a potent yet gentle ritual for evening skin texture and smoothing the appearance of fine lines.
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4.6
Rated 4.6 out of 5 stars
4.6 Stars (559 Reviews)

Why It’s Special

What’s Retinal?

Short for retinaldehyde, Retinal is a form of Vitamin A. It helps rewind the look of fine lines and wrinkles by promoting renewal and boosting collagen. 

Super potent, surprisingly gentle

Retinal is 20x more potent than Retinol. That’s why we chose it! It’s super effective in small doses, which means our formula taps into its full superpowers without setting off your skin.

Leave fine lines behind

Whether you’re looking to turn back the clock or get a head start, Retinal’s specialty is smoothing the appearance of fine lines and wrinkles.

Smooth things over

Retinal plus micronutrient-rich plant actives work their magic each night, so you’ll notice improved skin texture and smaller-looking pores.

Refreshingly Different

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

Gentle on skin

Reduces appearance of lines

Smooths skin texture

Clean ingredients

Certified Plastic Negative

Vegan & cruelty-free

“Wake up to clear, radiant skin.”

Harpers Bazaar

“Boost the production of collagen and elastin while sealing in moisture.”

INSTYLE

“Hyper effective at smoothing the appearance of fine lines”

Esquire

“Rewinds the appearance of aging with gentle ingredients.”

The Quality Edit

Pure, Powerful Ingredients

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

Retinal

A form of Vitamin A, Retinal helps rewind the look of fine lines and wrinkles by promoting renewal and boosting collagen

Four O’Clock Flower Cells

A night-blooming flower that works to revive skin radiance

Gardenia Stem Cells

Help rewind the look of fine lines and wrinkles by supporting collagen and elastin

Round-headed Bush Clover Extract

Works to enhance skin tone by promoting nighttime renewal

Plant-derived Ceramides

Help support the skin barrier while sealing in moisture

Ginger Root Extract

Helps soothe skin and reduce the appearance of redness

Click or tap on an ingredient to learn more

Use 1-2 pumps at night before you apply your favorite moisturizer. Start by using 3 times a week and build up to nightly use. Daily AM sunscreen use recommended.


Q: What is Retinal?

A: Short for retinaldehyde, Retinal is one of the strongest forms of Vitamin A available without a prescription. It helps rewind the look of fine lines and wrinkles by promoting renewal and boosting collagen. 


Like Retinal’s widely-known “cousin”, Retinol, both derivatives need to go through a conversion process at the level of the skin to reach their active state: Retinoic acid. Traditional Retinol is 2 steps away from this conversion. Since Retinal needs only 1 step, it’s able to get to work more quickly, and your skin is able to use it more effectively. 


TLDR: We like to think of Retinal as Retinol’s hard-working, super-skin-renewing cousin that you’ve always wanted to hang out with (and now you can).  


Q: How and when do I use this product? 

A: As part of your nightly ritual, apply 1-2 pumps of Lunar Bloom Retinal Serum before your moisturizer of choice. Start out slowly (3 times a week) to allow your skin to acclimate, before building up to nightly use. 


Already loving the other Ursa Major serums in your routine? We suggest using Vitamin C in the morning and either layering Mountain Glow over Lunar Bloom at night, or alternating every- other-night between the two serums. 

 

Non-negotiable: pair this nighttime serum with a daytime SPF (we’re partial to our Force Field SPF 30), as retinoids can increase your skin’s sensitivity to the sun.


Q: How do I work this product into my existing serum routine?

A: One recommendation would be using Vitamin C in the morning and layering Mountain Glow over Lunar Bloom at night, or alternating every other night between the two serums. 


Q: Is it pregnancy safe?

A: This product is not recommended for those who are pregnant, nursing, or attempting to conceive. 


Q: What skin type is this suitable for? 

A: Lunar Bloom Retinal Serum works great for all skin types, even sensitive and acne-prone skin. This serum can keep both mature and young (and everywhere in between) skin glowing strong. 


Q: Is this safe for sensitive skin?

A: We chose Retinal specifically because of its efficacy—it’s 20x more potent than Retinol! That means we only needed to use a tiny bit (0.1%) in our formula. A tiny amount of potent Retinal is much easier on your skin than a larger amount of traditional Retinol—because your skin can’t absorb all that Retinol, and what's not absorbed can sit on skin and potentially cause unwanted side effects. We also added barrier-loving ingredients like plant-derived Ceramides and Hyaluronic Acid. to soothe even the most sensitive skin types. 


No matter your skin type, but especially those with sensitive skin, begin using gradually (3 times a week) to allow your skin to adjust. And don’t forget daily SPF protection.


If you’re worried about how extra-sensitive skin might react, you can build a Retinal sandwich—AKA applying a layer of moisturizer both before and after your serum—when starting out.


Q: How do I recycle this product? 

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


Q: What is the aroma?

A: Lunar Bloom Retinal Serum is unscented.

Lunar Bloom Retinal Serum Reviews

4.7
Rated 4.7 out of 5 stars
Based on 209 reviews
209 reviews
  • Stacey G.
    Verified Buyer
    I recommend this product
    AGE RANGE 50's+
    SKIN TYPE Combo
    SKIN CONCERN Uneven Texture
    Rated 5 out of 5 stars
    9/11/24
    Great retinal serum!

    Not harsh at all, but very effective.

  • Deborah G.
    Verified Buyer
    I recommend this product
    AGE RANGE 50's+
    SKIN TYPE Sensitive
    SKIN CONCERN Fine Lines
    Rated 5 out of 5 stars
    9/11/24
    Retinal Serum

    Appears to be working as anticipated, as hoped, no irritation. My complexion is clear and healthy

  • Jane A.
    Verified Buyer
    I recommend this product
    AGE RANGE 50's+
    SKIN TYPE Balanced
    SKIN CONCERN Fine Lines
    Rated 5 out of 5 stars
    9/7/24
    This works

    I can really see an improvement in my skin.

  • Susanna R.
    Verified Buyer
    I recommend this product
    AGE RANGE 40's
    SKIN TYPE Sensitive
    SKIN CONCERN Fine Lines
    Rated 5 out of 5 stars
    9/6/24
    Love this serum

    I absolutely love this serum. I'm not one to write reviews often, but wanted to give my two cents. My skin is glowing in the morning! This is especially nice because I have sensitive skin and it feels nourished rather than burned/overly sensitive as has been the case with similar products I've tried from other companies. My only issue is that it smells amazing except there is one ingredient, I'm not sure which, which sometimes smells mildewy to my nose. I keep using it nonetheless because it's so great for my skin.

  • Nana B.
    Verified Buyer
    I recommend this product
    AGE RANGE 50's+
    SKIN TYPE Combo
    SKIN CONCERN Fine Lines
    Rated 5 out of 5 stars
    9/1/24
    Fantastic!

    My skin has occasional breakouts and fine lines (oh, the joys of life in my 50s) and this Ursa product has made a significant change for the better! I’m a fan, so am using fantastic Face Wash, Toner, Mountain Glow Serum mornings and this product at night - love them all!

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