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 (217 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 (577 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

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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 217 reviews
217 reviews
  • Rachel K.
    Verified Buyer
    I recommend this product
    AGE RANGE 50's+
    SKIN TYPE Sensitive
    SKIN CONCERN Fine Lines
    Rated 5 out of 5 stars
    10/10/24
    A regular part of my night regime

    I use Lunar Bloom in conjunction with Alpine Rich Cream, and my skin looks and feels rejuvenated in the morning. I consistently get compliments on how amazing my skin looks. During my last dermatological visit, my doctor actually said to keep doing whatever I was doing (which included my shift to Ursa Major products), as my skin was looking YOUNGER than when she saw me a couple of years ago!

  • Priscilla H.
    Verified Buyer
    I recommend this product
    AGE RANGE 40's
    SKIN TYPE Combo
    SKIN CONCERN Fine Lines
    Rated 5 out of 5 stars
    10/5/24
    Best Restinal

    Amazing product. Great formulation. I don't use retinols because they irritate my skin. This retinal blend does not bother my skin at all and works wonders on dark spots! Thank you for making a product that works so well and is so enjoyable :)

  • Robin B.
    Verified Buyer
    I recommend this product
    AGE RANGE 50's+
    SKIN TYPE Balanced
    SKIN CONCERN Fine Lines
    Rated 5 out of 5 stars
    10/5/24
    Love the product not the package

    This is my second or maybe my third purchase of Lunar Bloom. I’m 66, look pretty good and want to hang onto what I have for as long as possible. You all make great, natural products that help me do so! I also use your Golden Hour Recovery and Forest Alchemy Eye creams. I appreciate the little jars and reuse them where I can, but the serum bottles and bothersome. When there is not enough product left for the pump to deliver, it’s hard to get the rest out of the bottle. I find I have to prop the bottle upside down and scoop out what’s left. Usually there is at least a weeks’ worth still to be used. That represents quite a bit of $$. I realize it’s an industry standard to use pump bottles for serum, but a jar is so much more practical for the consumer. Thanks for the great products and the opportunity to give feedback!

    Ursa Major Skincare
    10/8/24

    Hi Robin! Thank you so much for your continued support and thoughtful feedback! We understand your concern about the serum bottles, and we’ll definitely pass this along to our team. We so appreciate your input and are always looking for ways to improve. Thanks again for the love and please know we are always here to help or listen!

  • Therese
    I recommend this product
    Rated 5 out of 5 stars
    10/1/24
    5 Stars

    Fantastic! Visible benefits of this serum from first application, and continue with each use of product. Skin is smooth and glowing!

  • N. Lindsay C.
    Verified Buyer
    I recommend this product
    AGE RANGE 50's+
    SKIN TYPE Sensitive
    SKIN CONCERN Fine Lines
    Rated 5 out of 5 stars
    9/30/24
    What A Product

    This is a wonderful product. I am so glad all the products I have bought from this company had not been a disappointment. One product enhanced the others.

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