Daily Vitamin C Serum
Daily Vitamin C Serum
Daily Vitamin C Serum
Daily Vitamin C Serum
top-rated
Daily Vitamin C Serum
top-rated
Daily Vitamin C Serum
top-rated
Daily Vitamin C Serum
top-rated
Daily Vitamin C Serum

Daily Vitamin C Serum

Brighten • Firm • Refine Tone

Daily Vitamin C Serum

Brighten • Firm • Refine Tone

A potent Vitamin C serum that helps visibly brighten, fade dark spots, and improve signs of aging for a youthful-looking glow.

$92   $73.60

$78.20

Free U.S. shipping on $50+ orders and all subscriptions

Hydra Eye Balm
Hydra Eye Balm
$55
Help deeply hydrate and visibly brighten with this nourishing, antioxidant-rich eye balm. 
Moisture Rich Balm
Moisture Rich Balm
$88

Our bestselling face balm that helps hydrate, soothe, and support collagen production for a dewy, healthy-looking glow. 

Dermatologist tested for sensitive skin.

Nightly Retinol Serum
Nightly Retinol Serum
$92
A gentle retinol serum that helps smooth the look of fine lines and uneven texture for firmer-looking, more radiant skin.
The Serums
The Serums
$165
($184 Value)
Target tone and fine lines from AM to PM with the only two serums you need—Daily Vitamin C Serum and Nightly Retinol Serum.

The backbone of any results-driven skincare ritual? A great Vitamin C serum—like this one that’s gentle, hydrating, and above all, effective. It’s formulated with 3-O-Ethyl Ascorbic Acid, a highly stable derivative of Vitamin C that stays on the skin longer to help visibly brighten, reduce dark spots, and smooth uneven tone. Squalane helps prevent moisture loss for a hydrated finish, while Plankton Extract helps protect against harmful oxidative stress. Use it every morning before moisturizer and SPF for a radiant, refreshed, and more youthful-looking complexion.

The Benefits:

  • Helps visibly brighten and reduce dark spots for a refreshed, youthful-looking glow.
  • Helps smooth uneven tone while delivering lightweight hydration.
  • Provides antioxidant support to help protect against harmful oxidative stress.
  • Ideal for everyday use, layering seamlessly under moisturizer or SPF.

Full Size Daily Vitamin C Serum: 30 ml | 1 fl oz

Use AM daily. Apply a dime-size amount to a clean face, neck, and décolleté, avoiding the eye area. Let the serum soak in, then follow with Ritual Oil and Moisture Rich Balm to lock in moisture. Follow with SPF.

Key Ingredients:

  • 3-O-Ethyl Ascorbic Acid: Visibly brightens, reduces dark spots, and smooths uneven tone.
  • Squalane: Helps prevent moisture loss for a hydrated, firmer-looking complexion.
  • Plankton Extract: Helps protect against oxidative stress and support the skin barrier.

Full Ingredients:

Water (Aqua), Propanediol, 3-O-Ethyl Ascorbic Acid, Solanum Tuberosum (Potato) PulpExtract, Hydroxypropyl Starch Phosphate, Helianthus Annuus (Sunflower) Seed Oil,Tetrahexyldecyl Ascorbate, Magnolia Officinalis Bark Extract, Rosmarinus Officinalis(Rosemary) Leaf Extract, Squalane, Furcellaria Lumbricalis Extract, Potassium Sorbate,Ethylhexyl Olivate, Lecithin, Microcrystalline Cellulose, Hydroxyacetophenone,Tocopherol, Ethyl Ferulate, Maltodextrin, Citric Acid, Sodium Hydroxide, Glycerin,Caprylyl Glycol, Glyceryl Laurate, Cellulose Gum, Sphingomonas Ferment Extract,Potassium Cetyl Phosphate, Glyceryl Undecylenate, Tetrasodium Glutamate Diacetate.

At Oak Essentials, we prioritize gluten-free formulations and formulate without cyclic silicones, colorants, sulfates, phthalates, parabens, PEGs, petroleum, mineral oil, and nano particles.

Remove pump/dropper from bottle. Rinse the inside of the bottle with warm water to remove any visible product formula. Dispose of bottle (unassembled from the pump) into your recycling bin or drop off at your local recycling center. Dispose of the pump/dropper in your regular trash bin.

Ingredients

Complete Your Routine

Step 1 - Cleanse
Nourishing Cleansing Milk
Nourishing Cleansing Milk
A creamy cleansing milk that gently sweeps away dirt, oil, and makeup while helping to balance skin’s pH and support...
$48   $38.40

$40.80

Step 2 - Treat
Daily Vitamin C Serum
Daily Vitamin C Serum
A hydrating serum that helps stimulate collagen and fade uneven skin tone. 
$92   $73.60

$78.20

Step 3 - Restore
Ritual Oil
Ritual Oil
A lightweight, beautifully luxurious Blue Tansy face oil that helps hydrate, balance, and soothe the feeling of sensitivity with just...
$88   $70.40

$74.80

Step 4 - Moisturize
Moisture Rich Balm
Moisture Rich Balm
Our bestselling face balm that helps hydrate, soothe, and support collagen production for a dewy, healthy-looking glow. 
$88   $70.40

$74.80

Key Ingredients

Daily Vitamin C Serum - Key Ingredients

  • This highly stable derivative of Vitamin C remains on the skin longer without oxidizing, supporting effective absorption and visible results. It helps provide antioxidant support while visibly brightening, reducing dark spots, and smoothing uneven tone.

  • This plant-derived oil helps prevent moisture loss for a hydrated, firmer-looking complexion.

  • Rich in vitamins and minerals, this extract helps protect against oxidative stress and support the skin barrier for a naturally soft, supple finish.

Daily Vitamin C Serum - Key Ingredients
FAQs FAQ

FAQs

  • Daily Vitamin C Serum should be applied to clean, dry skin in the morning—after a toner if you use one, and before moisturizer or SPF. Allow the serum to fully absorb for 2–5 minutes before layering additional products. 

  • Daily Vitamin C Serum can help reduce signs of aging by improving the appearance of uneven tone and firmness for a brighter, healthier-looking complexion. 

  • For sensitive skin, we recommend patch testing first and starting with 1–2 applications per week to see how your skin responds. And as with any Vitamin C treatment, we recommend using SPF daily as Vitamin C may increase sun sensitivity. 

  • All Oak formulas are designed to deliver visible results almost immediately and compounding results over time. In a consumer performance study of 22 participants ages 28 to 66 using Daily Vitamin C Serum once daily, 91% said their skin looked brighter and more radiant after 8 weeks. 86% also said their skin looked firmer and had a healthy, youthful glow after 8 weeks. 

  • Daily Vitamin C Serum is a morning-specific serum that helps fade dark spots, improve the appearance of photodamage, and leave skin looking brighter and healthier. Nightly Retinol Serum is an evening-specific serum that helps smooth texture, promote a more even tone, and soften the look of fine lines. Firming Plant Peptide Serum is an AM or PM serum that helps support aging skin by visibly plumping, firming, and hydrating. And yes—you can layer Daily Vitamin C Serum with Firming Plant Peptide Serum in your morning routine. Just apply Firming Plant Peptide Serum first, let it absorb for 2–5 minutes, then follow with Daily Vitamin C Serum. 

Reviews & Questions