If you have sensitive, reactive or barrier-compromised skin, you've probably learned to be cautious around trending ingredients.

Retinol? Purged for weeks. AHAs? Left your skin raw and red. Vitamin C? Stung like nothing else.

So when peptides started appearing all over your feed — in Rhode's glazing fluid, in every new serum launch, in every skincare roundup — it's understandable if your first reaction was "that's probably not for me."

Here's the thing though: peptides might actually be the one trending ingredient that was made for sensitive skin.

Why Sensitive Skin Tends To React To Actives

To understand why peptides are different, it helps to understand why sensitive skin reacts in the first place.

Most skincare reactions come down to one of two things:

Barrier disruption — when an ingredient strips the skin's protective lipid layer, leaving it exposed and vulnerable. This is what happens with over-exfoliation, high-strength retinols and harsh cleansers.

Inflammatory response — when the skin perceives an ingredient as a threat and mounts a reaction. This shows up as redness, stinging, swelling or breakouts.

The ingredients most associated with results — acids, retinoids, high-dose vitamin C — tend to trigger one or both of these responses, especially in reactive skin types. The skincare world has largely told sensitive skin to either push through or miss out.

Peptides don't work that way.

What Makes Peptides Different

Peptides are amino acid chains that work by communicating with your skin cells — signalling them to behave in specific ways. Depending on the type of peptide, they might signal for more collagen production, support wound healing, or — in the case of anti-inflammatory peptides — calm the skin's sensitivity response at a cellular level.

Crucially, they don't work by disrupting anything. They don't break down dead skin cells, they don't accelerate cell turnover, they don't thin the skin over time. They work with your skin's natural processes rather than overriding them.

This is what makes them uniquely compatible with sensitive skin.

How To Add Peptides To A Sensitive Skin Routine

The good news: peptides are one of the most straightforward ingredients to introduce. There's no adjustment period, no purging phase and no need to start slowly.

Here's how to do it well:

1. Choose a formula designed for barrier health Not all peptide products are created equal. Some contain peptides alongside fragrance, alcohol or high-dose actives that can undo all the good work. Look for formulas that pair peptides with barrier-supporting ingredients — ceramides, hyaluronic acid and niacinamide are all ideal companions.

2. Use it consistently Peptides work cumulatively. Unlike an acid that gives you immediate (and sometimes dramatic) results, peptides build over time. Daily use is where the real results happen.

3. Don't layer with conflicting ingredients Peptides play well with almost everything — but very high concentrations of AHAs can potentially affect their efficacy. If you use acids, apply your peptide product at a different time of day or on alternate days.

4. Apply to clean skin before heavier products Peptide serums and milky treatments absorb best when applied directly to cleansed skin, before heavier creams or oils seal everything in.

What To Expect

Unlike the dramatic (and often uncomfortable) results you might get from stronger actives, peptides tend to deliver quiet, consistent improvement:

• Skin that feels calmer and less reactive over time

• Reduced redness with continued use

• A more resilient barrier that bounces back faster from irritants

• Gradually smoother, more even texture

• Less of that tight, uncomfortable feeling after cleansing

It's not an overnight transformation. It's skin that slowly, steadily gets better — without ever getting worse first.

Our Approach To Peptides At All For Sundays

Our Peptide Soothing Soak was formulated specifically with sensitive, reactive skin in mind.

We use Neutrazen™ (Palmitoyl Tripeptide-8) — a clinically studied anti-inflammatory peptide that helps maintain a normal sensitivity threshold in the skin. It doesn't just sit on the surface and temporarily soothe. It works at a cellular level to calm the inflammatory response that causes reactive skin to flare.

We've paired it with:

• 5% niacinamide — to strengthen the barrier, reduce redness and visibly even skin tone

• Four molecular weights of hyaluronic acid — for deep, layered hydration at every level of the skin

• Micro-dosed alpha arbutin — our brand signature, quietly supporting a more even complexion every single day

• Triple ceramide complex — to reinforce the barrier and lock in moisture

The result is a milky serum that preps and treats in one step — calming, hydrating and brightening without ever pushing your skin past its limits.

No fragrance. No harsh actives. No drama.

Just skin that feels genuinely better, day after day.

Shop the Peptide Soothing Soak →

All For Sundays is an Australian barrier-first skincare brand founded by a qualified beauty therapist. We believe your skin deserves results — without the damage. Every product is formulated to treat and protect in equal measure.