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MDP+ Peptide 9 Sunstick Review: SPF 50+ Korean Sun Stick

MDP+ Peptide 9 sunstick review: an SPF 50+ broad spectrum Korean sunscreen stick with a matte, no-white-cast finish in 0.7 oz. Specs, fit and limits.

MDP+ buyer’s guideUpdated October 2026Specs from maker listings

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Quick answer
  • What it is: the Peptide 9 Bio Sunstick Pro, a Korean sunscreen stick SPF 50+ for face and body.
  • Protection: SPF 50+ broad spectrum UVA/UVB, according to the listing. Reapply as the label directs.
  • Finish: no white cast, no stickiness and a velvety matte feel that layers over makeup, per the maker.
  • Size: 0.7 oz (20 g) travel stick, octinoxate-free and oxybenzone-free.
  • Gaps: the listing does not state a PA rating or water resistance.

This MDP+ Peptide 9 sunstick review looks at the brand's only sunscreen, the Peptide 9 Bio Sunstick Pro. It is a Korean sunscreen stick with SPF 50+ that MDP+ pitches as UV defense plus peptide-powered hydration in one swipe.

Everything below comes from the maker's Amazon listing, read carefully on paper. We cover what the stick promises, who it suits and where the listing leaves questions. It sits in the face care range next to the Peptide 9 cream and ampoule.

MDP+ Peptide 9 Bio Sunstick Pro Korean Sunscreen Stick SPF 50+ Face & Body
At a glance

MDP+ Peptide 9 Bio Sunstick Pro Korean Sunscreen Stick SPF 50+ Face & Body

On paper, the Peptide 9 Bio Sunstick Pro is a convenient SPF 50+ broad spectrum stick for daily wear and touch-ups over makeup. The matte, no-white-cast finish suits oily skin, per the listing. The small 0.7 oz size and the missing PA and water-resistance details are the trade-offs.

Good for
  • Reapplying sunscreen over makeup during the day
  • Oily or combination skin that likes a matte finish
  • Travel bags, gym bags and pockets
Not for
  • Covering large body areas quickly
  • Swimming or heavy sweating, since water resistance is not stated
  • Shoppers who need a stated PA rating

What the listing says: key specs

The listing is short, so here is every stated fact in one place.

SpecFrom the listing
Full namePeptide 9 Bio Sunstick Pro
SPF✓ SPF 50+
Broad spectrum✓ UVA/UVB
PA rating~ Not stated
Water resistance~ Not stated
FinishNo white cast, no stickiness, velvety matte
Use areaFace and body
Free fromOctinoxate and oxybenzone
Size0.7 oz / 20 g, travel size
Data noteThe title mentions peptides and the bullets mention peptide-powered hydration, but the listing does not name the peptides or say how many it contains. Check the box or product photos for the full ingredient list.

Is a Korean sunscreen stick SPF 50 easy to use?

A stick changes how you apply sunscreen. There is no lotion to pump, no brush and nothing to rub off your fingers, which the listing highlights as no mess.

The maker says it glides on smoothly and works over makeup. That makes it most useful for the second, third and fourth application of the day, when washing your face is not an option.

How to apply a sun stick evenly

  1. Finish your skincare and let it absorb.
  2. Swipe the stick in several passes across the forehead, cheeks, nose and chin.
  3. Go back over the high points where sun hits most, such as the nose and cheekbones.
  4. Pat lightly with clean fingertips if you want a smoother layer.
  5. Reapply through the day as the label directs, and after toweling off.

A thin single pass can leave gaps, so use enough to cover each area well. Follow the amount and timing guidance printed on the package.

Finish and skin type: who it suits

The title says matte finish for oily skin, and the bullets add lightweight and no stickiness. On paper, that profile favors oily and combination skin, plus anyone who dislikes shiny sunscreen under makeup.

Dry skin can still use it, but you may want a richer moisturizer underneath. In the MDP+ line, the Peptide 9 cream vs ampoule guide explains which hydrating layer to put first.

MDP+ Peptide 9 Bio Sunstick Pro Korean Sunscreen Stick SPF 50+ Face & Body

Check price →

MDP+ Peptide 9 Volume and Tension Cream Pro Korean Face Moisturizer 1.76 oz

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MDP+ Peptide 9 Volume Ampoule Pro

Check price →
Patch testTry the stick on a small patch of skin, such as along the jaw, before your first full day of wear. If you have reactive skin or a skin condition, ask a dermatologist which sunscreen suits you.

How the stick compares in size to other MDP+ products

The 0.7 oz stick is the smallest size MDP+ sells, tied with the Naite neck stick. That is ideal for a bag, but it goes quickly if you use it on arms and legs too.

Listed size of MDP+ face and stick products

Ounces from each listing (cream and sticks by weight; ampoule 100 ml shown as 3.38 fl oz)

Bio Sunstick Pro: 0.7oz0.7ozBio Sunstick ProNaite Neck Stick: 0.7oz0.7ozNaite Neck StickMelanon X Cream: 1.1oz1.1ozMelanon X CreamPeptide 9 Cream: 1.8oz1.8ozPeptide 9 CreamVolume Ampoule: 3.4oz3.4ozVolume Ampoule

If you like the stick format, the same idea shows up in the neck range. Our neck cream vs neck stick comparison covers the Naite 1000 Shot stick, and all neck products sit under neck care.

MDP+ Peptide 9 sunstick review: pros and cons

StrengthsTrade-offs
✓ SPF 50+ broad spectrum UVA/UVB✗ Only 0.7 oz / 20 g
✓ No white cast, matte finish per the listing~ PA rating not stated
✓ Layers over makeup for reapplying~ Water resistance not stated
✓ Octinoxate-free and oxybenzone-free~ Peptides not named in the listing

Since sunscreen is part of any spot-care routine, it also appears in our best Korean skincare for dark spots list, alongside Melanon X Cream.

How to choose a sunscreen stick: what to look for

  • SPF and broad spectrum on the label. This stick lists SPF 50+ and UVA/UVB coverage.
  • PA or water resistance, if you need them. Neither is stated here, so pick another product for swimming.
  • Finish. Matte suits oily skin and makeup; dewy sticks suit dry skin.
  • Size versus use. A 20 g stick is best for the face and touch-ups.
  • Removal. Plan a proper evening cleanse. The cleansing and pore care range has an oil that the maker says melts sunscreen.

For more face options built on peptides, see the best Korean peptide skincare guide.

Verdict

Our MDP+ Peptide 9 sunstick review comes down to convenience. The listing promises SPF 50+ broad spectrum UVA/UVB protection, a matte finish with no white cast and a stick you can swipe over makeup, which makes regular reapplying far easier.

Choose it as your daily face and touch-up sunscreen. Skip it as your only option for beach days, since water resistance and PA are not stated. Whatever you use, reapply per the label and remove it fully at night with the best Korean double cleansing products.

FAQ

What SPF is the MDP+ Peptide 9 Bio Sunstick Pro?

SPF 50+ broad spectrum against UVA/UVB, according to the listing.

Does it leave a white cast?

The maker says no white cast and no stickiness, with a velvety matte finish.

Can I reapply it over makeup?

Yes, the listing says it is lightweight and suited to layering over makeup. Reapply as often as the label directs.

Is the Peptide 9 sunstick water resistant?

The listing does not state water resistance or a PA rating, so check the package before swimming or sports.

MDP+ Peptide 9 sunstick review: is it good for oily skin?

On paper, yes. The title names a matte finish for oily skin, and the bullets describe it as lightweight and non-sticky.

How big is the stick?

0.7 oz, or 20 g, sold as a travel size for face and body.

Build a simple MDP+ routine

Peptide 9 cream and ampoule, Naite neck care, Red Lacto Collagen cleansers and the SPF 50+ sunstick. Check sizes and today’s price on Amazon.