VITAMIN C SERUM 10%
acorn+oak vitamin c serum with dropper on a beige background with text about vitamin C concentration.
acorn+oak Vitamin C 10% Serum bottle held in hand with dropper, text highlighting benefits on a white background.
acorn+oak skincare ingredients with droplets on a white background
Comparison chart between acorn+oak and other skincare products
acorn+oak vitamin c serum held by a hand with an orange half in the background, text about clean ingredients.
three acorn+oak skincare bottles with FSC Certified packaging on a beige background
VITAMIN C SERUM 10%
acorn+oak vitamin c serum with dropper on a beige background with text about vitamin C concentration.
acorn+oak Vitamin C 10% Serum bottle held in hand with dropper, text highlighting benefits on a white background.
acorn+oak skincare ingredients with droplets on a white background
Comparison chart between acorn+oak and other skincare products
acorn+oak vitamin c serum held by a hand with an orange half in the background, text about clean ingredients.
three acorn+oak skincare bottles with FSC Certified packaging on a beige background

VITAMIN C SERUM 10%

$32.99 Sale Save

Reveal radiant, even-toned skin with our advanced 10% vitamin C serum. This stable, non-irritating formula combines antioxidant-rich botanicals and proven actives to visibly brighten, smooth, and defend against daily damage.

Routine Integration

Benefits

  • Fades dark spots
  • Boosts radiance
  • Firms skin
  • Protects against environmental damage

Powered By

  • Vitamin C
  • MSM
  • Hyaluronic Acid
  • Vitamin B5 (Panthenol)
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Experience the perfect balance of power and gentleness in this 10% vitamin C serum. Stable 3-o-ethyl ascorbic acid works alongside kale, kelp, and antioxidant-rich botanicals to brighten and protect. Hyaluronic acid, MSM, and vitamin B5 deeply hydrate and smooth, while niacinamide helps refine texture and restore clarity. Skin feels fresh, radiant, and resilient—day after day.

Water (Aqua), 3-O-Ethyl Ascorbic Acid (Vitamin C), Glycerin, Niacinamide (Vitamin B3), Methyl Sulfonyl Methane (MSM), Sodium Hyaluronate (Hyaluronic Acid), Brassica Oleracea Acephala (Kale) Leaf Extract, Laminaria Digitata (Sea Kelp) Extract, Panthenol (Pro-Vitamin B5), Arginine, Tocopherol (Vitamin E), Aloe Barbadensis (Aloe Vera) Leaf Juice, Ethylhexylglycerin, Caprylyl/Capryl Glucoside, Carbomer, 1,2-Hexanediol, Caprylyl Glycol

*Ingredients in bold are certified organic.

After cleansing, apply 3-4 drops to slightly damp skin. Gently press and pat into face, neck, and chest. Allow 30 seconds for optimal absorption before applying additional acorn+oak skincare to seal in benefits and enhance your natural radiance. Use morning and evening for best results. 

Layering: For optimal absorption and effectiveness, always layer your skincare from thinnest to thickest consistency—beginning with serums, followed by targeted treatments, and finishing with nourishing creams to seal in benefits.

WHY IT'S BETTER

Your Daily Dose of Skin Perfection

skincare logo
STABLE SMART-C TECHNOLOGY

While traditional vitamin C serums can quickly oxidize and lose potency, our breakthrough 10% 3-O-Ethyl Ascorbic Acid formula remains stable and effective, delivering consistent brightening results without the irritation commonly associated with standard vitamin C products.

skincare logo to address hydration
CELLULAR RENEWAL ACCELERATOR

Unlike basic vitamin C serums, our advanced triple-action system combines MSM, kelp minerals, and arginine amino acids to enhance nutrient absorption and activate skin metabolism – dramatically accelerating the skin's natural repair and renewal processes.

MULTI-VITAMIN AMPLIFICATION COMPLEX

Where conventional serums rely solely on vitamin C, our innovative formula synergistically combines vitamins C, E, niacinamide, and B5 with hyaluronic acid to create a comprehensive skin-strengthening matrix that simultaneously brightens, hydrates, and protects – delivering visible results from the first application. 

How to use

Experience Glow In 3 Simple Steps

Reveal radiance with every drop — our Vitamin-C serum boosts brightness and shields your skin from daily stressors.

① Cleanse & Prep

Begin with freshly cleansed, dry skin to prep your face for deep hydration.

② Apply Serum

Dispense 3–4 drops onto fingertips, then gently press into face, neck, and chest.

③ Let It Absorb

Wait 30 seconds to fully absorb. Follow with acorn+oak eye cream and facial moisturizer to seal in the benefits and enhance your natural radiance.

Layer from thinnest to thickest: serum → eye cream → moisturizer.

Routine Integration
An open acorn+oak vitamin c serum with the dropper lifted up

Real Results Across the Routine

Miranda Holt

Vitamin C Serum 10%

“The lightweight formula absorbs easily, making it the perfect first step in your morning routine.”

NICOLE HAMILL

Eye Cream

“I’ve noticed a visible difference in my dark circles, and it really brightens up my eyes."

Alina

Radiance Revival Trio

"They didn't just formulate products, they designed synergy. It's not just clean beauty, it's smart beauty."

FAQS

We combine the best of science and nature, featuring marine-derived nutrients, powerful botanicals, and clinically-proven active ingredients. Each formula is thoughtfully crafted to deliver maximum results with minimum fuss.

Keep your natural skincare essentials in a cool, dry place, protected from direct sunlight. Just like the sheltering branches of an oak, this simple care ensures your products maintain their transformative power.

Apply products from thinnest to thickest consistency: start with serums, follow with eye cream, and finish with moisturizer. Always finish with SPF (coming soon!) during daytime use.

Most customers notice improved skin texture and hydration within the first few weeks. For optimal results, we recommend consistent use for 4-6 weeks as your skin completes its natural renewal cycle.

Yes! Our formulas are thoughtfully crafted to be effective yet gentle. We recommend patch testing new products on a small area for 24 hours before full application.

We thoughtfully choose each ingredient for both its power and purity. Our formulas combine marine wisdom with botanical intelligence:

Marine-Derived Nutrients

Our signature marine complex features kelp, seaweed, and dual algae varieties, sustainably sourced from the ocean's depths. These powerful ingredients deliver essential minerals and nutrients that help transform your skin.

  • What: Kelp, seaweed, red algae, micro-algae
  • Benefits: Rich in minerals, provides deep hydration, supports skin renewal
Botanical Intelligence

We harness nature's most effective ingredients like kale and antioxidant-rich plant extracts. Each botanical is selected for its proven benefits and ability to work in harmony with your skin.

  • What: Kale extract, aloe vera, jojoba oil
  • Benefits: Packed with vitamins C, A, K, antioxidants, natural oils
Scientific Innovation

Our stable form of vitamin C, advanced peptide complexes, and biomimetic ingredients demonstrate our commitment to gentle yet effective formulation.

  • What: Stable vitamin C (3-O-Ethyl Ascorbic Acid), peptides, niacinamide, hyaluronic acid
  • Benefits: Brightening, collagen support, hydration, skin barrier strength
Clean Approach
  • All ingredients tested for stability and effectiveness
  • Formulated to work in harmony with your skin
  • No harsh additives
  • Each ingredient selected with purpose

We believe in making clean, effective skincare accessible. That's why we offer:

Free shipping on all orders $45+

  • Standard 0-1lb. (3-5 business days): $6.99
  • Standard 1-5lbs. (3-5 business days): $9.99
  • Express (2-3 business days): $9.99

Orders typically ship within 1-2 business days
Tracking information provided via email once your order ships
Just like nature's cycles, we aim to keep our shipping process simple and reliable.

We process orders with the same care we put into crafting our products:

  • Orders placed before 2 PM EST ship same day (Mon-Fri)
  • Standard shipping: 3-5 business days
  • We currently ship within the continental United States

Track your transformation journey with our detailed shipping updates sent straight to your inbox.

We take great care in packaging your products, but if something isn't right:

  • Contact us within 48 hours of delivery
  • Send photos of the damaged items and packaging
  • We'll ship a replacement right away
  • No need to return the damaged items - Follow our repurpose ideas!

Like nature's ability to renew and restore, we're committed to making things right when they don't go as planned.

Your satisfaction matters to us. We stand behind our products with a straightforward return policy:

  • Experience our product with confidence - we offer a 30-day satisfaction guarantee on all U.S. orders - no questions asked (we trust you!)
  • Here’s where we do things differently: If a product isn't your perfect match, keep it. Instead of shipping it back, we invite you to share it with someone whose skin might love it, or mindfully repurpose it. This approach honors both your time and our environment.
  • You’ll receive a full refund (minus any shipping) to your original payment method within 5-7 business days
  • If your product arrives damaged or there’s an issue, reach out to us at hello@shopacorn.com - like the oak’s strength, our commitment to making things right runs deep. 

We believe in building strong relationships through trust and transparency. If you're not happy, we’ll still make it right—no hoops to jump through.

We keep your experience as pure and simple as possible:

  1. Email us at hello@acornandoak.com
  2. Include your order number 
  3. What didn’t work for you (this helps us grow and improve)
  4. Totally optional: Let us know how you plan to repurpose or share your product!
  5. You’ll receive a confirmation email once we receive your inquiry and we'll process your refund within 5-7 business days to your original payment method.

How should I mindfully repurpose my product?

  • Here are some earth-friendly ways to give your product new purpose:
  • Share the glow: Gift it to a friend or family member who might love it
  • Recycle mindfully:
  • Rinse containers thoroughly 
  • Check local recycling guidelines for proper disposal 
  • Repurpose creatively:
  • Use moisturizers as hand or body cream
  • Transform serums into cuticle oil

Like the oak's cycle of renewal, every product can find its purpose. Together, we're creating beauty that honors both your skin and our earth.

Three acorn+oak skincare products on a white background.
Three acorn+oak skincare product bottles held by hands with text describing their benefits on a neutral background.
acorn+oak vitamin c serum on a beige background with text about vitamin C concentration and how gentle it is on the skin
acorn+oak vitamin c serum held by a hand with an orange half in the background, emphasizing natural ingredients.
acorn+oak Vitamin C 10% Serum bottle held in hand with dropper, text highlighting benefits on a white background.
acorn+oak skincare ingredients with droplets on a white background
Comparison chart between 'acorn+oak' and other skincare products with text and icons.
acorn+oak facial moisturizer with text on a beige background
acorn+oak Facial Moisturizer bottle held in a hand with product benefits listed on a beige background
acorn+oak facial moisturizer bottle with green leaves in the background, emphasizing natural ingredients.
acorn+oak eye cream in a bottle with text on a beige background
acorn+oak eye cream bottle held in hand with product details on a beige background
acorn+oak eye cream bottle with green leaves in the background and text about clean ingredients.
Three acorn+oak skincare bottles with black labels on a beige background, featuring text about product formulation.
acorn+oak skincare bottles with FSC Certified packaging on a beige background
Three acorn+oak skincare products on a white background.
Three acorn+oak skincare product bottles held by hands with text describing their benefits on a neutral background.
acorn+oak vitamin c serum on a beige background with text about vitamin C concentration and how gentle it is on the skin
acorn+oak vitamin c serum held by a hand with an orange half in the background, emphasizing natural ingredients.
acorn+oak Vitamin C 10% Serum bottle held in hand with dropper, text highlighting benefits on a white background.
acorn+oak skincare ingredients with droplets on a white background
Comparison chart between 'acorn+oak' and other skincare products with text and icons.
acorn+oak facial moisturizer with text on a beige background
acorn+oak Facial Moisturizer bottle held in a hand with product benefits listed on a beige background
acorn+oak facial moisturizer bottle with green leaves in the background, emphasizing natural ingredients.
acorn+oak eye cream in a bottle with text on a beige background
acorn+oak eye cream bottle held in hand with product details on a beige background
acorn+oak eye cream bottle with green leaves in the background and text about clean ingredients.
Three acorn+oak skincare bottles with black labels on a beige background, featuring text about product formulation.
acorn+oak skincare bottles with FSC Certified packaging on a beige background

Your Routine, 31% OFF!

Radiance Revival Trio — Your Daily Glow Routine

Achieve radiant, healthy skin effortlessly with our curated bundle of skincare must-haves. This all-in-one kit includes our hydrating Face Moisturizer, revitalizing Eye Cream, and brightening Vitamin C Serum—all designed to work harmoniously for an effective daily routine. Each product is crafted with powerful ingredients that nourish, protect, and enhance your skin’s natural glow. Simplify your skincare, save with this exclusive bundle, and enjoy a holistic approach to radiant skin. Perfect for anyone seeking results without the hassle.

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Customer Testimonials