The Science of Anti-Aging: How Skin Ages and What You Can Do About It
Skin aging happens through two distinct processes: intrinsic aging (driven by genetics and time) and extrinsic aging (driven by environmental factors, above all UV radiation). Anti-aging science has moved on from surface-level treatments to interventions that work at the cellular level — including gene expression targeting via technologies like ageLOC.
In one sentence: The most effective anti-aging strategy combines daily SPF (the single most evidence-backed intervention), topical retinoids, antioxidants, collagen-stimulating treatments, and — at the most advanced level — gene expression targeting.
Key facts about skin aging
- Collagen decline: collagen production falls gradually from early adulthood onwards, which shows up as thinning and sagging
- Cell turnover slowdown: skin renews itself more slowly over time, so the surface looks duller and rougher
- Extrinsic aging: UV radiation is the single largest environmental contributor to visible facial aging
- Hormonal change: falling estrogen through perimenopause and menopause accelerates collagen loss
- Most evidence-backed topical ingredient: retinoids — prescription tretinoin is the reference standard
- Most evidence-backed prevention: daily broad-spectrum SPF 30+
What happens to skin as it ages
Intrinsic aging
- Collagen decline — the dermal collagen network thins, leading to sagging and deeper wrinkles
- Elastin degradation — fibres fragment, so skin loses its ability to spring back
- Cell turnover slowdown — causing dullness and uneven texture
- Hyaluronic acid depletion — reducing moisture retention and plumpness
- Gene expression changes — Youth Gene Clusters shift toward less youthful patterns
Extrinsic aging
- UV radiation — the single largest contributor. Breaks down collagen and elastin, causes DNA damage, triggers age spots.
- Oxidative stress — free radicals from pollution, UV, smoking and poor diet
- Glycation — excess dietary sugar binds to collagen and elastin, making them stiff and brittle
- Inflammaging — low-grade chronic inflammation accelerating cellular aging
Hormonal aging
Falling estrogen through perimenopause and menopause accelerates skin aging in women. Pharmanex's Estera range is built around those phases: Nu Skin describes Phase II as “designed for women during perimenopausal years” and Phase III as “for women in their postmenopausal years.”
Sleep and skin aging
During deep sleep the body enters its primary repair mode, and growth hormone drives collagen synthesis and cell turnover. Poor sleep raises cortisol, which breaks down collagen, and impairs barrier repair. Seven to nine hours is a genuine anti-aging intervention, and a free one.
What the independent research shows
These are peer-reviewed findings about categories of treatment, not about any particular brand's product:
- Daily SPF: participants applying sunscreen daily showed 24% less skin aging over 4.5 years (Hughes et al., Annals of Internal Medicine, 2013)
- Retinoids: topical tretinoin (0.1%) increased type I collagen production by up to 80% in photoaged skin after 12 months (Griffiths et al., New England Journal of Medicine, 1995)
- Collagen peptides: oral bioactive collagen peptides improved skin elasticity measurably at 8 to 12 weeks in double-blind placebo-controlled trials (Proksch et al., Skin Pharmacology and Physiology, 2014). That trial studied a specific peptide preparation, not a Nu Skin product.
For claims about specific Nu Skin products, we point you to Nu Skin's own published material rather than paraphrasing it. We would rather understate than overstate.
The most effective interventions
1. Daily broad-spectrum SPF
No single intervention has more clinical evidence. SPF 30 or above, every morning. See Sunright Face & Body SPF 50.
2. Topical retinoids
The most clinically validated topical anti-aging ingredient — they accelerate cell turnover and stimulate collagen production. Build up gradually. See Tru Face Peptide Retinol Complex.
3. Antioxidants
Supplements such as Tēgreen 97 — standardized to a minimum of 97% pure polyphenols — and LifePak Nano provide systemic support that topical products cannot reach.
4. Devices
- ageLOC LumiSpa iO — Micropulse Oscillation Technology; Nu Skin says it “both treats and cleanses skin”, twice daily
- Nu Skin RenuSpa iO — Adaptive Microcurrent Technology, face and body
- GloPRO — microneedling for skin texture
Not sure which? Which Nu Skin device is right for me? →
5. Collagen support
Beauty Focus Collagen+ — taken daily as a drink. Nu Skin describes it as “a clinically proven collagen supplement… to support skin radiance, hydration, texture, and overall appearance.” Give it a proper run before judging it.
6. Gene expression targeting
Nu Skin's ageLOC technology targets Youth Gene Clusters — which Nu Skin defines as “functional groups of genes that regulate how we appear to age.” See ageLOC Youth and ageLOC R2.
7. Comprehensive nutrition
A foundation multivitamin ensures the basics are consistently met. Which LifePak is right for me? →
Building a strategy
Start with prevention
Daily SPF, an antioxidant serum, a consistent cleansing routine, a quality multivitamin, retinol two or three nights a week. This is the foundation and it is worth having in place before anything else.
Then add active treatment
Once the basics are consistent, add a firming serum, a cleansing device, and collagen supplementation. Change one thing at a time so you can tell what is working.
Support it from within
Supplements reach what topicals cannot. A multivitamin, antioxidants, collagen, and — for women in the perimenopausal or postmenopausal phases Nu Skin's formulas are built for — Estera Phase II or III.
Repair and maintain
Barrier repair, deep hydration, gentle exfoliation, and consistency. Anti-aging is a routine, not a purchase.
Frequently asked questions
When does skin start aging?
Intrinsic aging begins in early adulthood, when collagen production starts its gradual decline. Visible signs appear at very different times depending on genetics, sun exposure and lifestyle.
Can you reverse skin aging?
Some of it can be improved. Clinical studies show consistent use of retinoids, antioxidants, SPF and collagen-stimulating treatments measurably improves texture, firmness and radiance — the Griffiths and Hughes trials cited above are good examples. Nothing returns skin to twenty.
Does menopause affect skin?
Falling estrogen accelerates collagen loss, which is why the effect on skin is often noticeable through perimenopause and after. Nu Skin's Estera Phase II is, in Nu Skin's words, “designed for women during perimenopausal years.”
Does sleep affect skin aging?
Yes. Deep sleep is when growth hormone drives collagen synthesis and cell renewal. Poor sleep raises cortisol and impairs barrier repair.
Where can I buy these products?
NuBodyRx is an Independent Nu Skin Brand Affiliate — we hold the account so you do not need one. Every order ships sealed from Nu Skin's own warehouse, with 90 days to change your mind, used or not. Help me choose →
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease. Individual results vary.