Aging Skin & Wrinkles

Your skin tells the story of your life. Medical-grade treatments can rewrite the chapter on visible aging without surgery or downtime.

68%reduction in fine lines with tretinoin at 24 weeks

Why does skin age?

Skin aging is driven by two processes working simultaneously. Intrinsic aging is genetically programmed: collagen production decreases by roughly 1% per year after age 20, elastin fibers degrade, and cellular turnover slows. By age 50, you have lost approximately 30% of your dermal collagen, leading to thinner skin, fine lines, and reduced elasticity. Extrinsic aging, primarily from UV exposure but also from pollution, smoking, and oxidative stress, accelerates this process by damaging DNA, breaking down collagen fibers, and creating the hyperpigmentation and deep wrinkles associated with photoaging.

The visible signs of aging, wrinkles, sagging, uneven tone, dullness, and loss of volume, reflect structural changes happening at the cellular level. Fibroblasts, the cells responsible for producing collagen and elastin, become less active. Glycosaminoglycans that hold moisture in the dermal matrix decline. The skin barrier weakens, leading to increased transepidermal water loss and sensitivity. These are not cosmetic concerns alone. They represent measurable biological changes.

Over-the-counter serums and moisturizers can improve surface hydration and provide mild antioxidant protection, but they cannot reverse structural collagen loss or increase cellular turnover rate. That requires prescription-grade active ingredients that penetrate the epidermis and influence the behavior of dermal cells directly.

What accelerates skin aging

1

Collagen breakdown

UV radiation and oxidative stress activate matrix metalloproteinases (MMPs) that actively break down existing collagen fibers faster than your body can replace them.

2

Oxidative damage

Free radicals from sun exposure, pollution, and metabolic stress damage cell membranes, DNA, and proteins, accelerating the aging process at the molecular level.

3

Hormonal decline

Estrogen loss during menopause accelerates collagen degradation. Women can lose up to 30% of dermal collagen in the first five years after menopause.

4

Reduced cellular turnover

Epidermal cell turnover slows from roughly 28 days in your 20s to 45-60 days by age 50, leading to dull, uneven skin tone and slower healing.

How we treat skin aging

INA's skin aging protocols combine prescription-grade topicals with injectable therapies for comprehensive treatment. Tretinoin, the gold standard of anti-aging dermatology, increases collagen production, accelerates cellular turnover, and reduces fine lines with decades of clinical evidence behind it. Our custom anti-aging compound pairs active ingredients for a targeted approach to your specific concerns. Collagen peptide injections and NAD+ therapy work from within to support the structural proteins and cellular energy that keep skin resilient.

Glutathione injections address oxidative damage and improve skin luminosity from the inside out, while our Skin Radiance Kit provides a complete system for patients who want a comprehensive approach. Your INA physician will evaluate your skin concerns, medical history, and current routine to prescribe the combination that addresses your specific aging pattern, whether that is fine lines, loss of firmness, hyperpigmentation, or overall dullness.

Recommended treatments

Frequently asked questions

How is prescription tretinoin different from retinol?
Tretinoin (retinoic acid) is the active form of vitamin A that directly binds to retinoid receptors in skin cells. Over-the-counter retinol must be converted to retinoic acid by your body, a multi-step process that results in significantly lower potency. Tretinoin produces visible results faster and at lower concentrations than retinol.
How long does it take to see results from tretinoin?
Initial skin texture improvement is typically visible within 4-6 weeks. Significant reduction in fine lines and improved tone usually becomes apparent at 12-16 weeks. Maximum collagen remodeling occurs at 6-12 months of consistent use. The improvement continues as long as you use the medication.
Can I use tretinoin if I have sensitive skin?
Yes, with proper introduction. Your INA physician will prescribe an appropriate concentration and recommend a gradual introduction schedule (every third night, then every other night, then nightly) to minimize the irritation, dryness, and peeling that commonly occur during the adjustment period.
What do collagen peptide injections do?
Collagen peptide injections deliver bioactive collagen fragments directly into the body, stimulating fibroblast activity and supporting dermal collagen production from within. This complements topical treatments by addressing the structural protein loss that causes skin laxity and volume loss.
How does NAD+ help with skin aging?
NAD+ is essential for cellular energy production and DNA repair in skin cells. Declining NAD+ levels contribute to impaired cellular function, slower repair processes, and accelerated aging. NAD+ therapy supports the energy-dependent processes that maintain skin health, including collagen synthesis and antioxidant defense.
Is it too late to start anti-aging treatment in my 50s or 60s?
No. While prevention is ideal, tretinoin and collagen therapies produce measurable improvement at any age. Studies show significant collagen production increases and wrinkle reduction in patients who begin treatment well into their 60s. The best time to start is always now.

Ready to address your aging skin & wrinkles?

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Medical disclaimer

The information provided on this page is for educational purposes only and does not constitute medical advice. All treatments require a physician consultation and prescription. Individual results vary. Treatment eligibility is determined by a licensed healthcare provider based on your medical history and current health status. Do not start, stop, or change any medication without consulting your physician.

Warning: Compounded GLP-1s (Tirzepatide & Semaglutide)

Please contact your doctor ASAP and seek in-person care immediately if a side effect becomes problematic or you experience:

  • Severe nausea and/or vomiting resulting in dehydration - it is important to stay well hydrated and drink plenty of fluids while on this medication. Kidney problems/kidney failure - vomiting, nausea, diarrhea can cause dehydration and kidney issues and make kidney problems worse in individuals who have pre-existing kidney conditions; may sometimes lead to the need for hemodialysis.
  • Thyroid C-Cell Tumor: Trouble swallowing, hoarseness, a lump or swelling in your neck, or shortness of breath (see black box warning below).
  • Pancreatitis: Severe pain in your abdomen or back that will not go away.
  • Acute gallbladder disease: Pain in the middle or right upper stomach, fever, white parts of your eyes turn yellow or skin turns yellow, nausea/vomiting.
  • Hepatitis: Elevated liver enzymes/Jaundice.
  • Diabetic retinopathy problems: Changes in vision in those with type II diabetes, particularly vision problems may worsen in those with a history of diabetic retinopathy.
  • Severe gastrointestinal disease: may cause gastrointestinal disease; do not use if you have a history of severe gastrointestinal disease.
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