Swan Theory
Daily Radiance Vitamin C Serum
Daily Radiance Vitamin C Serum
A gentler approach to brighter skin. Our Daily Radiance Vitamin C Serum combines stable Vitamin C with calming Centella Asiatica, antioxidant-rich botanicals, and lightweight hydration to help visibly brighten, refine tone, and restore healthy-looking radiance over time.
The result: smoother, calmer, more luminous skin without the irritation.
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Paraben & Phthalate Free
Fragrance Free
Cruelty Free
Made in USA
- TJTammie J.Verified BuyerRated 5 out of 5 starsUsing it Daily
I love vitamin c serums and this one has a wonderufl texture. I put it on every morning and really enjoy how it makes my skin look and feel
- BRBrenda R.Verified BuyerRated 5 out of 5 starsA Few Months in
Ever since I started using this consistently I’ve noticed my skin looking healthier and smoother overall. After a couple months, some of my acne marks looked less noticeable and my complexion seemed more even. I’ve actually gotten a few compliments on my skin lately, which has been really nice. My cheeks look healthier without looking irritated, and my skin just feels a lot smoother than before
- ENEmily N.Verified BuyerRated 5 out of 5 starsPerfect Match For my Skin
I love that it feels hydrating instead of harsh. Most brightening serums make my skin angry, but this one actually makes it feel calmer while still giving me that glow I look for.
- DMDebbie M.Verified BuyerRated 5 out of 5 starsBecoming a Favorite of Mine
I’ve tried quite a few vitamin C serums over the years, including some very expensive ones and this has becme one of my favorites. I prefer more stable vitamin C products these days since so many pricier ones seem to oxidize before you can even finish them. This one has been reliable goes on very smoothly, absorbs nicely, and layers well under my moisturizer without pilling or feeling heavy. I also appreciate that the price is reasonable enough that I can use it on my neck and chest too. After using it consistently, I’ve noticed my skin looking brighter and healthier overall, especially across my chest
- EFElisa F.Verified BuyerRated 5 out of 5 starsSo Far so Good!
This is based on my first impressions, but I’ve been really liking it so far. The texture is lightweight and watery with a slight gel feel, so it absorbs really easily into my skin. I also like that it seems gentle enough for sensitive skin. I know that can means results can take a bit longer, but I prefer something consistent that doesn’t irritate my skin. It layers well with the rest of my routine too, which has been nice.
Effective · Clean · Gentle
Swan Theory is built on the belief that transformative change is always within reach. Our products are expertly formulated to visibly lift, firm, and rejuvenate skin—powered by science-backed ingredients and daily rituals that deliver results you can see and feel.
VITAMIN C
Brightens dull skin and helps support a more even-looking complexion
MSM (Methyl Sulfonyl Methane)
Mineral that helps improve firmness, smooth texture, and support healthy collagen
CENTELLA ASIATICA
Calming botanical that helps reduce visible redness and support skin barrier
ALOE VERA
Soothes and hydrates skin for a softer, refreshed feel
VITAMIN E
Powerful antioxidant that helps protect skin and lock in lasting moisture
CASSIA SEED EXTRACT
Plant-based alternative to hyaluronic acid for intense hydration & improved skin elasticity
JOJOBA OIL
Deeply moisturizes without a greasy feel
HYDRATION COMPLEX
Helps skin stay soft, hydrated, and visibly refreshed
CLINICALLY PROVEN INGREDIENTS
Thoughtfully formulated with research-backed, dermatologist trusted ingredients that deliver visible results.
SAFE FOR SENSITIVE SKIN
Gentle on delicate skin and free from harsh additives, our products are designed to deliver results without irritation.
GUARANTEED TO WORK
We’re so confident Swan Theory works that if you’re unhappy with your first purchase, we’ll take the product back within 30 days.
FREE SHIPPING
Enjoy free shipping on orders $49+ within the United States.
PEOPLE LOVE US
“I've tried more neck creams than I can count. Most of them either irritate my skin or make big promises and deliver nothing. This one is different. It’s gentle, soaks in nicely, and after about 3 weeks, I noticed my neck looking smoother and less crepey. I wasn’t expecting miracles, but it really has improved the way my skin looks and feels.”
“At 64, I’ve accepted that aging is part of life but I still want to take care of my skin. I bought this cream hoping it would help with the fine lines on my neck and chest, and I’m genuinely surprised at the results. My skin feels firmer and not nearly as dry. I also appreciate that it doesn’t have a heavy smell to it.”
“I was hesitant to spend the money, but this has been worth every cent. I've really noticed the skin under my chin starting to sag lately but this cream has really helps tighten things up. I love how clean the ingredients are, and that it doesn’t leave a greasy film. I’ll be reordering.”
ASK US ANYTHING
We are a small family owned business. Ask us anything, and you will get a response by real humans. We don’t have automated bots here.
| Weight | 1 oz |
|---|---|
| Shipping |
Free shipping on orders $49+ |
| Ingredients: | Water, Sodium Ascorbyl Phosphate, Methyl Sulfonyl Methane, Aloe Barbadensis Leaf Juice, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Centella Asiatica Extract, Equisetum Arvense Extract, Geranium Maculatum Extract, Taraxacum Officinale (Dandelion) Root Extract, Simmondsia Chinensis (Jojoba) Seed Oil, Tocopheryl Acetate, Glycerin, Cassia Angustifolia Seed Polysaccharide, Hydroxyethylcellulose, Sodium Hydroxide, Potassium Sorbate, Sodium Benzoate, Ethylhexylglycerin, Phenoxyethanol |
| Size |
1.7oz |
Frequently Asked Questions
What type of vitamin C is in this serum, and is it gentle enough for sensitive skin?
Swan Theory's Daily Radiance Vitamin C Serum uses Sodium Ascorbyl Phosphate (SAP) — a stable, gentle form of vitamin C that's well-tolerated by sensitive and mature skin. Unlike L-ascorbic acid, SAP doesn't oxidize quickly, turn orange over time, or cause the tingling and irritation many women over 50 experience with traditional vitamin C formulas.
Can I use this Vitamin C serum with retinol?
Yes, vitamin C and retinol can be used together safely when layered correctly. Use the Daily Radiance Vitamin C Serum in the morning and Swan Theory's Overnight Renewal Retinol Serum at night. This pairing brightens and protects during the day while retinol renews skin overnight, making it a complete routine for mature skin.
When should I apply vitamin C serum in my skincare routine?
Apply vitamin C serum in the morning, after cleansing and before moisturizer. Vitamin C works as a daytime antioxidant, helping to neutralize free radicals from UV exposure and environmental stress. For mature skin, applying it daily in the morning maximizes its brightening and tone-evening benefits throughout the day.
How long does it take to see results from a vitamin C serum?
Most women notice a subtle brightness and more even skin tone within 2–4 weeks of daily use. More significant improvements in dullness and hyperpigmentation typically develop over 8–12 weeks of consistent use. Results are gradual as vitamin C works by reducing melanin production over time, not overnight.
What makes this vitamin C serum different for skin over 50?
Most vitamin C serums are formulated for oily or younger skin and can feel drying or irritating on mature skin. Swan Theory's formula pairs Sodium Ascorbyl Phosphate with Centella Asiatica, Squalane, Jojoba Oil, and Vitamin E which support the skin barrier and provide hydration.
