Reunoa vs DerMend: an honest ingredient-by-ingredient comparison
By Margaret Hale, Reunoa EditorialLast updated
The short answer
Both are cosmetic products for bruise-prone, thin skin, and both contain arnica, vitamin K and ceramides. Reunoa is a light, fast-absorbing serum that states a 15% arnica concentration. DerMend is a richer cream that adds retinol and glycolic acid, which help with skin renewal but can irritate very thin skin. The right choice depends on your skin and preferences.
Key takeaways
- We make Reunoa, so read this as a comparison by an interested party — we've stuck to published ingredient lists and directions.
- Shared core: arnica, vitamin K (phytonadione) and ceramides in both [3] [1].
- DerMend adds retinol and glycolic acid; Reunoa adds no retinoids or acids and states a 15% arnica concentration.
- Reunoa is a serum that absorbs quickly; DerMend is a concentrated cream applied to the whole affected area twice daily [2].
- If your skin is very thin or easily irritated, a formula without retinol or acids is gentler to start with.
On this page
People who search "Reunoa vs DerMend" are usually choosing between two products for the same problem: purple patches and thin, fragile skin on the forearms and hands. DerMend has been sold in pharmacies for years; Reunoa is newer and sold online.
At a glance
| Reunoa Bruise Defense & Repair Serum | DerMend Moisturizing Bruise Formula | |
|---|---|---|
| Format | Light serum, absorbs in under a minute | Rich, concentrated cream |
| Arnica | Yes — stated at 15% | Yes — arnica flower extract; concentration not stated [3] |
| Vitamin K | Yes | Yes (phytonadione) [3] |
| Ceramides | Yes | Yes (five ceramides) [3] |
| Retinol | No | Yes [3] |
| Glycolic acid (AHA) | No | Yes [3] |
| Niacinamide | Yes (repair booster) | Yes |
| Fragrance | Fragrance-free | Check current label |
| Directions | Twice daily on forearms, hands, shins | Twice daily, cover the whole affected area, not a spot treatment [2] |
| Where to buy | Only at reunoa.com | Pharmacies and online retailers |
| Category | Cosmetic | Cosmetic |
Ingredient lists can change — always check the current label.
The shared foundation
Both products are built on the same three-part approach that dermatology literature describes for actinic purpura: support circulation and clearing (arnica), support the vessels (vitamin K) and rebuild the barrier (ceramides) [4]. Note that the review describing this approach was written about DerMend's formula and funded by its maker.
What the ingredient research says:
- Arnica: 20% arnica ointment helped laser-induced bruises fade faster than placebo in a randomised trial [5]. Concentration matters — homeopathic dilutions didn't show the same benefit in other studies.
- Vitamin K: vitamin K cream applied after laser treatment reduced bruise severity [6].
- Ceramides: replenish lipids in the skin barrier, which weakens with age.
None of these studies tested either finished product.
The real differences
1. Retinol and glycolic acid
DerMend includes retinol and glycolic acid. Retinol has good evidence for thickening aged skin over months — in one trial, retinol increased collagen production in naturally aged skin [7]. Glycolic acid exfoliates and supports renewal.
The trade-off: both can cause redness, stinging and peeling, especially at the start and on very thin skin. Reunoa leaves them out so it can be used twice daily from day one on fragile skin. If your skin tolerates retinoids well and you want the renewal effect, that's a point for DerMend. If you have very thin, reactive skin, a retinoid-free formula is gentler.
2. Stated arnica strength
Reunoa states its arnica concentration: 15%. DerMend lists arnica flower extract but doesn't publish a percentage. Given that the evidence for arnica comes from high-strength preparations, we think stating the strength is useful to buyers.
3. Texture and daily use
Reunoa is a serum: it absorbs quickly, isn't greasy and won't mark sleeves. DerMend is a richer cream — some people prefer that feel on very dry skin, especially in winter.
4. Where you can buy it
DerMend is widely available in pharmacies. Reunoa is sold only at reunoa.com — be careful with "Reunoa" listings on Amazon or eBay, which are not from us. See where to buy.
Which should you choose?
| Choose… | If you… |
|---|---|
| Reunoa | have very thin, sensitive or easily irritated skin; want a light serum that absorbs fast; want a stated high arnica strength; prefer to avoid retinol and acids |
| DerMend | tolerate retinol well and want its renewal effect; prefer a rich cream; want to buy in a pharmacy |
| Either | take blood thinners — both are cosmetics that act on the skin, not in the blood [8] |
Whichever you choose: use it twice daily, give it at least two to four weeks, protect your arms from the sun and keep taking any medicine as prescribed.
Frequently asked questions
Is Reunoa better than DerMend?
It depends on your skin. Both share arnica, vitamin K and ceramides. Reunoa states a 15% arnica concentration and avoids retinol and acids, which suits very thin, sensitive skin. DerMend adds retinol and glycolic acid for renewal, which some skin finds irritating. Neither has been tested against the other.
Does DerMend have arnica?
Yes. DerMend Moisturizing Bruise Formula lists arnica montana flower extract among its ingredients, along with phytonadione (vitamin K), several ceramides, retinol and glycolic acid. The arnica concentration is not stated on the published ingredient list.
Can I use Reunoa and DerMend together?
There's no need to layer two products with the same core ingredients. Using both may increase the chance of irritation from DerMend's retinol and acids. Pick one, use it consistently twice a day, and judge it after a few weeks.
Which works faster for bruises?
There's no head-to-head study, so no one can honestly say. Both are designed for twice-daily use over weeks. Expect skin to feel more hydrated first; changes in how easily you bruise and how quickly marks fade take longer.
Are Reunoa and DerMend safe with blood thinners?
Both are cosmetic products applied to the skin and don't act in the blood. Keep taking your blood thinner exactly as prescribed. If you take warfarin, mention any vitamin K–containing skin product to your anticoagulation clinic as a precaution.
Sources
- Reunoa — official store (product information, FAQ, guarantee) — reunoa.com.
- DerMend Moisturizing Bruise Formula Cream — product page and directions — DerMend (Ferndale Healthcare).
- DerMend Moisturizing Bruise Formula Cream — ingredient list — SkinSAFE ingredient database.
- Ceilley RI Treatment of Actinic Purpura. Journal of Clinical and Aesthetic Dermatology, 2017. PubMed 28979656
- Leu S, et al. Accelerated resolution of laser-induced bruising with topical 20% arnica: a rater-blinded randomized controlled trial. British Journal of Dermatology, 2010. PubMed 20412090
- Shah NS, et al. The effects of topical vitamin K on bruising after laser treatment. Journal of the American Academy of Dermatology, 2002. PubMed 12140470
- Kafi R, et al. Improvement of naturally aged skin with vitamin A (retinol). Archives of Dermatology, 2007. PubMed 17515510
- Is It a Cosmetic, a Drug, or Both? (Or Is It Soap?) — U.S. Food and Drug Administration.
General information, not medical advice. Written by the Reunoa editorial team; Reunoa makes Bruise Defense & Repair Serum. See our editorial policy for how we pick sources and keep product mentions fair.