#Anti-Aging

Anti-aging is the most over-marketed category in beauty and the most evidence-supported when you strip the marketing away. Two ingredients (sunscreen and retinoids) account for the vast majority of measurable change in clinical research. Everything else is incremental. That isn't a popular message because it doesn't sell a 14-step routine, but it's the one I keep coming back to.

The four pillars, in order of impact

First, daily broad-spectrum SPF 30 or higher, every single day, including grey days and indoor days near windows. UV exposure accounts for an estimated 80 percent of visible facial aging. The 'you don't need sunscreen indoors' claim is largely wrong for window-adjacent work or driving. Second, a nightly retinoid, starting at the lowest tolerable dose. Third, morning antioxidant (vitamin C in a stable form, or a combination antioxidant serum). Fourth, ceramides and hydration for barrier integrity, because aging skin loses lipids faster than younger skin.

Retinoids: which one, when, how

The retinoid family runs from gentle to potent: bakuchiol (mild, plant-based, evidence improving), retinol (gold-standard OTC), retinaldehyde (faster-converting, often better tolerated than retinol at equivalent strength), adapalene (selective, calming, evidence-backed), tretinoin (prescription, fastest-acting). The complete retinoid map covers the trade-offs, but the short version: most people do well starting with retinaldehyde 0.05 to 0.1 percent or retinol 0.3 percent, two to three nights a week over moisturizer, building up over 8 to 12 weeks.

The biggest mistake is starting too strong and quitting at week three because of irritation. A proper retinol introduction ramps slowly. The second-biggest mistake is comparing your face to a retinol marketing photo at week four. Real change shows up between weeks 12 and 24, not before.

The contrarian take: most 'anti-aging' devices are accelerants, not replacements

LED masks, microneedling pens, gua sha, and red light therapy have measurable effects, but they work best on top of a strong foundational routine, not in place of one. LED at home can support collagen synthesis. At-home microneedling is risky and rarely worth it. Red light therapy has real but modest evidence. None of them replaces sunscreen and a retinoid. A $400 device with no SPF is worse than free sunscreen with no device. Spend the money in the right order.

Peptides, vitamin C, and the supporting cast

Peptides aren't a retinol alternative, but they complement it well, especially around the eyes and on sensitive areas where retinol stings. Copper peptides (GHK-Cu) have particularly good evidence for wound healing and collagen support. Vitamin C in the right form (L-ascorbic acid 10 to 20 percent, or stabilised derivatives like ascorbyl tetraisopalmitate or 3-O-ethyl ascorbic acid) brightens, supports collagen, and adds photoprotection on top of SPF. Elelaf's BioCell Renewal Cream is built around peptide chemistry for the same reason: peptides add depth to a retinoid-based routine rather than replacing it.

The decade-by-decade adjustments

20s: SPF, gentle cleanser, hydration, maybe bakuchiol or a low retinol. Don't over-build a routine you don't need yet. 30s: add the retinoid properly, vitamin C in the morning, focus on consistency. The decade habits start showing. 40s: increase ceramide content, consider a peptide layer, watch the neck and chest. Strategy beats more steps. 50s and beyond: lipid replacement becomes the priority, retinoid use stays but at a tolerable cadence, and a dermatologist conversation about prescription options becomes more valuable.

The internal layer most people skip

Sleep is genuinely anti-aging. Chronic short sleep elevates cortisol, accelerates glycation, and slows wound healing visibly within weeks. Glycation from chronic high blood sugar cross-links collagen and elastin in ways no topical reverses. The boring lifestyle pieces matter more than the marketing wants to admit, and they cost nothing.