Description
OUR GTA™-CENTERED ACTIVE COMPLEX
The Featured Ingredients
Our powerful blend of actives works synergistically to boost collagen synthesis, repair cellular damage, and restore the skin’s youthful balance and radiance.
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.
Moisture Increase
Reduced ROS
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
Very impressed. I thought I was too far gone for any anti-aging product to work. But this serum proved me wrong. Noticed less puffiness and smoother skin around my eyes. Feels like a mini facelift without the surgery.
Absolutely love this! It soaks into my skin so fast, no greasiness at all, and my face feels so soft after. I’ve had stubborn dry patches forever, and they’re completely gone now. My go-to for dry weather, for sure.
I’ve been struggling with uneven skin tone for years. Tried a bunch of popular serums (including one from [redacted]) but honestly, they did nothing for me. My cheeks had some stubborn discoloration that wouldn’t budge. Decided to test this one out after reading a few reviews. First week, not much changed. But around week 3, I noticed my skin looked more balanced, less blotchy. It’s not dramatic overnight stuff, but it’s real. And I haven’t had any breakouts or irritation which is a big win for me.
So, I’m in my mid-30s dealing with some uneven skin tone and sun damage. My esthetician recommended [redacted] vitamin C serum, but their prices were insane. Did some research and ended up choosing this one, and I’m so glad I did! My forehead and cheeks are already looking brighter after two weeks, which is impressive. Definitely sticking with it.
% of users who expressed the above experience after 4-8 weeks of use.
What makes the Age-Defying Serum different from other age defying products?
The serum is powered by Golden Triple Actives™ (GTA), a proprietary complex that supports your skin’s natural renewal process at a cellular level. Unlike many age defying formulas that only hydrate the surface, this serum helps restore firmness, radiance, and resilience from within while remaining clean, vegan, and suitable for all skin types.
Can I use it with other products or makeup?
Yes. The serum’s lightweight, fast-absorbing texture layers perfectly under moisturizer, sunscreen, or makeup. It can be used morning and night as the first step after cleansing to boost the performance of your entire skincare routine.
How soon will I see results?
Hydration generally improves immediately after application, leaving skin smoother and more supple. In as little as four hours, you can measure a reduction in your biological skin aging level using the Skin Aging Self-Test. Visible improvements in texture and radiance typically appear within 3–4 weeks, with continued use enhancing tone, firmness, and overall vitality.
Does this serum contain harmful ingredients?
Not at all. Our vegan formula is composed exclusively of EWG Green–rated ingredients (low hazard score 1–2) and is free from parabens, synthetic fragrances, and other harsh additives—ensuring both safety and purity. The artisanal glass container is also free from risk of leaching microplastics.
Where is it made？
Every Idunn’s Apple formula is developed and crafted in New York with inspiration drawn from Nordic purity and precision.
How should I store this serum to prevent color change, since it contains vitamin C?
The serum can be stored at room temperature, though refrigeration may help extend its freshness. Unlike many vitamin C formulas that oxidize and yellow over time, this serum remains clear and stable. Its advanced stabilized vitamin C complex as well as light- and oxygen-resistant artisanal glass container preserve both its potency and clarity for longer use.
Already did a skin age test?
Shop by Your Skin Age
Silent Signs Stage (minor SEHI). Goals: slow visible aging through antioxidant protection, balance hydration, and maintain skin smoothness and elasticity.
Rejuvenating Cleanser
Age-Defying Day Lotion
Age-Defying Night Cream
Longevity System I – Early Intervention (Under 45)
Initial Signs Stage (gradually increased SEHI). Goals: preserve firmness by enhancing antioxidant defense and maintaining moisture retention.
Rejuvenating Cleanser
Age-Defying Day Lotion
Age-Defying Night Cream
Longevity System II – Firmness Reinforcement (45-49)
Active Aging Stage (moderately expressed SEHI). Goals: improve elasticity by intensifying antioxidant defense, increase cell repair, and sustain hydration.
Rejuvenating Cleanser
Age-Defying Day Lotion
Longevity System III – Active Repair (50-54)
Visible Structure-Loss Stage (highly expressed SEHI). Goals: rebuild dermal density and resilience by boosting hydration and cell repair while maintaining antioxidant defense.
Rejuvenating Cleanser
Longevity System IV – Deep Rebuild (55-59)
Functional Aging Stage (severe SEHI). Goals: reactivate cellular renewal, enhance microcirculation, restore vitality and tone through deep hydration, anti-wrinkle care, and antioxidant protection.
Rejuvenating Cleanser
Longevity System V – Advanced Renewal (60-64)
Significant Signs Stage (critical SEHI). Goals: support structure preservation and prevent further decline via intensive cell repair, anti-wrinkle action, deep hydration, and antioxidant/dark spot defense.
Rejuvenating Cleanser
Longevity System VI – Critical Restoration (65+)
Inside the Lab
Insights From Our Scientists
Citations:
- Yang f et al: The study of skin hydration, anti-wrinkles function improvement of anti-aging cream with alpha-ketoglutarate. J Cosmet Dermatol, 2022
2. Naeini SH et al: Alpha-ketoglutarate as potent regulator for lifespan and healthspan: evidences and perspectives. Exp Gerontol, 2023
3. Son ED et al: Alpha-ketoglutarate stimulates procollagen production in cultured human dermal fibroblasts, and decreases UVB-induced wrinkle formation following topical application on the dorsal skin of hairless mice. Biol Pharm Bull, 2007.
4. Humbert PG et al: Topical ascorbic acid on photoaged skin, clinical, topographical and ultrastructural evaluation: double-blind study vs. placebo. H.Exp Dermatol , 2003.
5. Boo YC et al: Ascorbic acid (Vitamin C) as a cosmeceutical to increase dermal collagen for skin antiaging purposes: emerging combination therapies. Antioxidants (Basel). 2022
6. Lin FH et al Ferulic acid stabilizes a solution of vitamins C and E and doubles its photoprotection of skin. J Invest Dermatol. 2005
7. Kim HM et al: Effects of palmitoyl-KVK-L-ascorbic acid on skin wrinkles and pigmentation. Arch Dermatol Res. 2017
8. Saini U et al: Gallic acid: a potent antioxidant and anti-imflammatory agent in modern cosmeceuticals. Recent Adv Drug Deliv Formul. 2025 .
9. Kumar KJ et al: In vitro and in vivo studies disclosed the depigmenting effects of gallic acid: a novel skin lightening agent for hyperpigmentary skin diseases. Biofactors. 2013
10. Pavicic T et al: Efficacy of cream-based novel formulations of hyaluronic acid of different molecular weights in anti-wrinkle treatment. J Drugs Dermatol. 2011
I’ve been using the personalized serum, lotion, and cream set for just two weeks, and I’m genuinely blown away. From day one, I loved how lightweight and fast-absorbing the serum is—no greasy feel, just soft, refreshed skin.
What really surprised me is how quickly I started seeing results. My fine lines (especially around the eyes) have softened, my skin feels firmer, and there’s this healthy glow I haven’t seen in years. Even better—some of my dark spots and uneven patches are visibly fading, which has been a struggle for me with other products.
The hydration is on point too. My skin feels smooth, balanced, and overall healthier. I’ve tried so many products that promise a lot but deliver little—this one actually lives up to the hype. Definitely worth it.
Very impressed. I thought I was too far gone for any anti-aging product to work. But this serum proved me wrong. Noticed less puffiness and smoother skin around my eyes. Feels like a mini facelift without the surgery.
I’ve been struggling with uneven skin tone for years. Tried a bunch of popular serums (including one from [redacted]) but honestly, they did nothing for me. My cheeks had some stubborn discoloration that wouldn’t budge. Decided to test this one out after reading a few reviews. First week, not much changed. But around week 3, I noticed my skin looked more balanced, less blotchy. It’s not dramatic overnight stuff, but it’s real. And I haven’t had any breakouts or irritation which is a big win for me.
Age 31
Absolutely love this! It soaks into my skin so fast, no greasiness at all, and my face feels so soft after. I’ve had stubborn dry patches forever, and they’re completely gone now. My go-to for dry weather, for sure.
This is one of the better serums I’ve tried. The texturr is smooth, and it feels light on my skin. It helps with hydration and has even softened some of my fine lines. Can’t complain—it works like it’s supposed to.