Description
Our Golden Triple Actives Complex
The Featured Ingredients
Our trio of powerful ingredients that comprise the Golden Triple Actives to refresh your skin's inherent youth.
Alpha-KG
Boosts cellular energy and supports collage production. Helps reduce oxidative stress and signs of aging. Promotes skin firmness and elasticity.
Ascorbic Acid
Powerful antioxidant that brightens skin and evens tone. Stimulates collagen synthesis to reduce fine lines. Protects against UV and environmental damage.
Acidic Polyphenols
Potent antioxidant with anti-inflammatory properties. Helps fade dark spots and soothe irritated skin. Supports skin barrier repair and fights premature aging.
Plus
Low MW HA (3000-5000 D)
Targets deeper skin layers to boost elasticity and visibly reduce fine lines, refining overall skin tone.
High MW HA (1500-1800 KD)
Forms a light hydration film that retains moisture on the surface for a radiant, dewy finish.
Crosspolymer HA
Creates a 3D moisture network that locks hydration deep within the skin, providing lasting suppleness and plumping from within.
Moisture Increase
Smoother Appearance
Boosted Radiance
Optimize Your Regimen
The Ideal 3-Step Routine
A complete daily system to reactivate your skin’s self-repair cycle.
Prep
Refresh and Awaken with Cleanser
Day Care
Reinvigorate with Serum + Protect with Lotion
Night Care
Reinvigorate with Serum + Boost with Cream
Hear It From Your peers
What Others Are Saying
It absorbs in seconds and leaves a silky feel. My cheeks look fuller and brighter even in dry weather.
No irritation at all. It gives my skin a healthy, dewy finish that lasts through the day.
Each night I apply it, and each morning my skin feels renewed and comfortable. The dullness is gone.
My skin feels nourished and soft all day. The dryness I used to have is gone and my complexion looks more even.
What is the major advantage for using a non-injected HA hydration booster serum?
The major advantage of using a non-injected HA hydration booster serum is its ability to deliver intensive, filler-like hydration and plumping effects without the need for injections. It offers a safe, non-invasive solution that provides instantly visible improvements in skin moisture, smoothness, and elasticity.
How does this serum differ from other regular hydration products?
Unlike typical hydration products that focus only on surface moisture, this GTA™ formula-based hydration booster serum combines an engineered complex of five different hyaluronic acids with GTA™ ingredients — alpha-ketoglutarate, ascorbic acid, and gallic acid. Together, they work synergistically as a 3D hydration matrix targeting the epidermis, dermis, and sub-dermal layers. This powerful blend significantly increases and retains skin moisture, providing immediate and long-lasting hydration from within in a non-injected HA booster manner. It helps reduce the appearance of wrinkles and fine lines, leaving the skin with a smooth, skin-booster-like glow.
How soon will I see results?
In general, you can see an immediate improvement in skin hydration after applying this serum. Within just five minutes of application, a reduction in visible skin aging can be observed using Idunn’s Apple Skin Aging Test. Skin texture and radiance begin to improve within 3 to 4 weeks. With continued use, results include enhanced tone, firmness, and overall skin vitality.
Does this serum contain harmful ingredients?
Not at all. Our formula is crafted with EWG Green–rated ingredients (low-hazard rating of 1–2) and is free from parabens, synthetic fragrances, and other harsh additives.
Can this serum be used with my other products or with my current skincare routine?
Yes! This serum can be used with our other anti-aging products to form aging-segmented specific module for the best-suited skincare and efficacy. It also layers well under most skincare and makeup products. For best results, use it after cleansing, and before your moisturizer or sunscreen.
How should I store this product to prevent color changes, since it contains vitamin C?
This serum can be stored at room temperature. Unlike many other vitamin C serums that turn yellow after a few weeks due to oxidation, this formula remains clear and stable. Its unique stabilized vitamin C complex, along with oxidation- and light-resistant packaging, helps maintain its freshness and effectiveness over time.
Seeing Is Believing
What Is Your True Skin Age?
Our 10-minute self test at home will identify your true skin age. By comparing against your birth age, you'll be able to able to measure your aging velocity, then select the ideal skincare product regimen.
Our Targeted Formulations
Shop by Your Skin Age
Don’t know your skin age yet? Start with your birth age and refine later with our self-test.
Inside the Lab
Insights From Our Scientists
Citations:
- Li A et al: Ferri ion-dependent epigenetic hydroxylation enhancement-based anti-skin aging. 2025, US patent pending
- Yang J et al.: The study of skin hydration, and wrinkles function improvement of anti-aging cream with alpha-ketoglutarate. J Cosmet Dermatol 2022
- Naeini SH et al.: Alpha-ketoglutarate: a potential regulator for lifespan and healthspan. Evidences and perspectives. Exp Gerontol 2022
- Sand D et al.: Ascorbic acid (Vitamin C) stimulates procollagen production in cultured human dermal fibroblasts and decreases UVB-induced MMP-1 formation following topical application on the dorsal skin of hairless mice. Biol Pharm Bull 2003
- Humbert P et al.: Topical ascorbic acid on photoaged skin: clinical, topographical and ultrastructural evaluation: double-blind study vs. placebo. Int J Cosmet Sci 2003
- Boo YC et al.: Ascorbic acid: emerging combination therapy cosmeceutical to increase dermal collagen for skin antiaging purposes. Antioxidants (Basel) 2022
- Lin FH et al: Ferulic acid stabilizes a solution of vitamins C and E and doubles its photoprotection. J Invest Dermatol 2005
- Kim YJ et al.: Effects of Palmitoyl-KVK-L-ascorbic acid on skin wrinkles and pigmentation. Arch Dermatol Res. 2017
- Saini U et al.: Gallic acid: a potent antioxidant and anti-inflammatory agent in modern cosmeceuticals. Recent Adv Drug Deliv Formul. 2020
- Kumari K et al.: In vitro and in vivo studies disclose the depigmenting effects of gallic acid: a novel skin lightening agent for hyperpigmentary skin diseases. Biofactors. 2013
It absorbs in seconds and leaves a silky feel. My cheeks look fuller and brighter even in dry weather.
This serum feels like giving my skin a tall glass of water. It’s refreshing and leaves my face glowing. My clients have even commented on how radiant my skin looks. It’s become a staple in my routine. A little goes a long way, so it’s worth the price.
The texture is very smooth, almost like silk, and it absorbs fast. I use it twice a day, and my skin feels more elastic. I like that there’s no strong scent or oily residue. It feels like a high-end product without being greasy or heavy.
Age 52
This serum hydrates deeply without clogging pores. My skin feels supple, and the texture has improved noticeably. I like layering it under my SPF in the morning. It gives a subtle glow that makes my foundation look better.
Each night I apply it, and each morning my skin feels renewed and comfortable. The dullness is gone.