Celimax Retinal Shot: reviews, effects and complete how-to
Share
The Retinal Shot Tightening Booster by celimax is a Korean evening treatment dosed at 0.1% retinal — retinal, not retinol: the skin only has one conversion to make instead of two. The concentration is not a marketing hook, it appears in the manufacturer's regulatory ingredient list as Retinal (0.1%). In practice: a 15 ml tube, a thick yellow cream, that tingles for about ten minutes on the first evenings. It is meant for skin that has already met a retinoid and is working on texture and the look of pores.
What do the reviews say about the celimax Retinal Shot?
They are overwhelmingly positive across several thousand international reviews, and noticeably more mixed among the handful of reviews written in French — a gap better explained by expectations than by the product.
What comes up as positive
- Skin texture and the look of pores, by far the most cited benefit: most reviews place it between three and four weeks.
- Better tolerance than expected for a retinal.
- The texture, which absorbs fast, leaves no greasy film and does not pill under a cream or a sunscreen.
- The ratio between the concentration obtained and the price paid.
What comes up as negative
- The tingling, the first objection: about ten minutes at each application during the first two weeks.
- Localised dryness (sides of the nose), slight flaking and passing redness at the start.
- The yellow tint, which surprises: a visible veil in the evening, gone with the next morning's cleanse.
- The 15 ml format judged small, and a nozzle that doses unevenly.
- A minority notices nothing — often people who expected an action on set wrinkles.
Why the French reviews are harsher
Internationally, on reviews counted in thousands, satisfaction is high and stable; in France, on a tiny volume, the average is lower. The first explanation is statistical: a few reviews do not make a sample. The second is more instructive.
On the French market, the product is sold under the word "retinol" — page titles, URLs, descriptions. A buyer who orders "a retinol cream" and receives a yellow cream that tingles for ten minutes did not get what was described to her: nobody warned her about the tingling or the colour, and nobody gave her a progressive protocol. A good share of the negative French reviews is therefore not about the product, but about that gap.
How to use the Celimax Retinal Shot?
In the evening only, as the last step of the routine, on clean, dry skin, in a very small quantity, avoiding the eye area — with a ramp-up in frequency spread over five to eight weeks.
The ramp-up, week by week
This protocol is the one the brand publishes on its Korean market, the most cautious of its official protocols.
| Period | Frequency | Quantity | Watch for |
|---|---|---|---|
| Before starting | Patch test on a small area, two evenings | A trace | Essential on sensitive skin |
| Weeks 1 and 2 | 1 to 2 evenings a week | About 2 mm of product | Tingling and dryness expected |
| Weeks 3 and 4 | 2 to 3 evenings a week | 2 mm | Do not speed up if the skin feels tight |
| Weeks 5 to 8 | 3 to 4 evenings a week | Up to 4 mm | Many skins gain nothing by going further |
| Beyond | Every evening if the skin keeps up | 4 mm | Step down at the slightest discomfort |
One discrepancy to note: the brand's US website proposes a faster pace, every other evening from the start. We recommend the Korean one: 0.1% is the top of the cosmetic range, too fast a ramp-up produces irritation, irritation produces abandonment, and a product abandoned after ten days gives nothing. If you hesitate about the concentration that suits you, the reading grid is in our comparison of retinal treatments (in French).
Where to place it, and what not to use the same evening
- Gentle cleanse, then dry well: on damp skin, penetration increases, and so does discomfort.
- The rest of the evening routine: toner, hydrating serum, cream.
- The booster last, in a thin layer, patting rather than rubbing.
- Areas to avoid: eye area, corners of the lips, irritated or recently waxed areas.
- The next morning, sun protection, including on overcast days.
What not to combine the same evening: scrubs or mechanical exfoliants, exfoliating acids (AHA or BHA), high-dose vitamin C. The brand explicitly advises against the first two; on acids, the published instruction is more generic — alternate evenings. As a general rule, a retinoid is not combined with benzoyl peroxide either.
The sandwich method
Moisturiser, then the booster, then another layer of moisturiser: a way to cushion the direct contact of the active during the first two weeks. This is not an instruction from the brand but advice that circulates among retinoid users, and it has a cost — by reducing discomfort, it also reduces penetration. A starting crutch, to be dropped as soon as the skin tolerates direct application.
What are the effects of the Retinal Shot?
Two categories of effects, never to be confused: the ones you are after, which come between three weeks and three months, and the adaptation effects, which come right away and go.
The desired effects, in order
- Weeks 1 and 2: nothing visible. That is normal: no cosmetic retinoid produces a result at that horizon.
- Weeks 3 and 4: skin texture. The first reported change and the most consistent — the skin looks more even, pores visibly less marked.
- Weeks 6 to 8: the look of fine lines softens, the complexion looks more uniform. The initial discomfort has normally disappeared.
- From 12 weeks: the realistic horizon for the appearance of deeper wrinkles.
The adaptation effects
They concern the first two to three weeks, and the manufacturer anticipates them: tingling for about ten minutes, transient redness, localised dryness (sides of the nose, chin), slight flaking, and on some skins a few passing blemishes. These reactions decrease: if, three weeks after starting, they are the same or worse, it is no longer adaptation.
Purging, irritation or allergic reaction: how to tell the difference
This is the number one question of anyone starting a retinoid. The table below gives practical landmarks: it does not replace medical advice. As soon as you fall outside these boxes, the person to talk to is your pharmacist or doctor.
| Purging | Irritation | Allergic reaction | |
|---|---|---|---|
| When | Between the first and fourth week, never from the first evening | Immediate or within the following hours | No ramp-up logic, sooner or later |
| Looks like | Micro-pimples, whiteheads, comedones coming out | Diffuse redness, burning, tightness, flaking | Marked itching, patches or papules, sometimes swelling |
| Where | Your usual blemish areas | The application areas, the thinnest first | Can clearly spread beyond the area |
| Course | Peaks then recedes in 2 to 6 weeks | Worsens at the same pace, improves if you space out | Does not recede, returns at each application |
| What to do | Continue, without increasing frequency | Space out one step, sandwich method, hydration | Stop and seek medical advice |
Stop without hesitation if the burning persists after rinsing, in case of swelling (eyelids and lips especially), itchy patches, cracking skin, or an irritation that worsens despite spacing out. Keep the packaging and seek advice: a cosmetic is not meant to hurt.
Why it tingles: marine sponge spicules
The tingling comes largely from a mechanical ingredient, not from the retinoid: marine sponge spicules, declared as Hydrolyzed Sponge in the INCI list.
A hydrolysed marine sponge provides silica micro-needles, very fine and very rigid. On application, they create micro-channels in the superficial layer of the epidermis, which helps the retinal cross the skin barrier instead of staying on the surface. The brand announces more than twenty thousand units per tube: a physical penetration system, complementary to the liposomal retinal.
What that changes in how it feels:
- It is immediate, from application, not progressive. A sensation that appears thirty minutes later and burns probably does not have the same cause: re-read the previous table.
- It decreases: it signals a skin getting used to a mechanical stimulus, and fades after two to three weeks.
- It is independent of your tolerance to retinoids. Someone who has used retinol for two years will feel it too.
Major practical consequence: no mechanical scrub during the whole course. No grains, no brush, no mitt. Your skin already receives a mechanical exfoliant several evenings a week; adding a second one means stacking two abrasions on the same stratum corneum. That is also why you apply it by patting. These spicules being of marine origin, this product is not vegan and should be avoided in case of seafood allergy.
15 ml booster or 30 ml serum: which one to choose?
They are two different products, and the difference is not the format but the molecule: the 15 ml booster contains retinal, the 30 ml serum contains retinol. This is the most frequent confusion among buyers, fed by two near-identical trade names within the same range.
| Criterion | Retinal Shot Tightening Booster | Retinol Shot Tightening Serum |
|---|---|---|
| Retinoid | Retinal (retinaldehyde) 0.1% | Retinol 0.1% |
| Conversions by the skin | 1 | 2 |
| Size | 15 ml | 30 ml |
| Form | Thick cream-booster, opaque metal tube with pointed nozzle | Serum, bottle |
| Number of ingredients | 32 | 42 |
| Niacinamide | Yes | No |
| Ascorbic acid | Yes | No |
| Declared peptides | 2 | 9 |
| Profile | Skin already used to a retinoid | More progressive approach |
How to decide. Never used a retinoid: the most progressive form is the most reasonable, retinol rising more slowly with its two conversions. Already on a well-tolerated retinol for several months: it is the booster — you are not raising the concentration, you are changing the form.
Useful precision: we only distribute the retinal booster, the Retinal Shot Tightening Booster 15 ml. If a gentle introduction is what you need, a 0.1% retinol serum does the same job.
What this product does not do
- It does not act on a set wrinkle. A cosmetic retinal works on the look of texture, fine lines and pores. Almost all disappointed reviews come from that expectation.
- It is not an acne treatment. A cosmetic treats no skin condition; if the matter is medical, it belongs to a dermatologist.
- It gives nothing in one week: the first two weeks only serve to build tolerance.
- It does not replace sun protection and does not work without it.
- It does not suit every skin: irritated skin has nothing to gain from receiving a retinoid and a mechanical exfoliant the same evening.
Precautions
- Pregnancy and breastfeeding: not recommended, for all retinoids without exception.
- Evening only, and sun protection the next morning, including in winter.
- Patch test before the first full application, essential on sensitive skin.
- Avoid the eye area and mucous membranes. External use only.
- Do not combine the same evening with scrubs, exfoliating acids and high-dose vitamin C.
- Marine origin: the spicules come from hydrolysed marine sponge, this product is not vegan.
- Storage away from light, tube tightly closed.
- Stop in case of persistent redness or irritation and seek advice. Keep out of reach of children.
Frequently asked questions
Should it be applied to the whole face or only as a targeted treatment?
Both are possible. The brand lists it as a targeted cream and the pointed nozzle goes that way, but nothing prevents the whole face once tolerance is established. In practice: targeted for the first two weeks, extended afterwards.
How long does a tube last?
Five to six weeks in daily use, so noticeably more during the ramp-up: count two to three months on a first course.
What if it tingles for more than ten minutes?
Rinse with lukewarm water, apply a simple, soothing cream, and space out one step the next time, using the sandwich method. If the sensation persists after rinsing or comes with swelling, stop and seek advice.
Can it be used in summer?
Yes, provided you are rigorous about sun protection and reduce the frequency during periods of strong exposure. Many keep their retinal course for autumn and winter: a reasonable choice, not a rule.
Should it be stopped before waxing, a peel or a laser?
Yes, as with all retinoids: suspend several days before and after the procedure on the area concerned, and follow the professional's instructions.
To conclude
The Retinal Shot is neither a miracle product nor a difficult one: it is a properly stabilised 0.1% retinal, which asks for five to eight weeks of patience and non-negotiable sun protection. The satisfied users are those who knew what to expect — the colour, the tingling of the spicules, the slow ramp-up, and the fact that skin texture moves before fine lines.
The full composition is on the celimax Retinal Shot Tightening Booster product page. To place this retinal among the others, see the comparison of retinal treatments (in French); for the rest of the routine, the celimax range and our Korean skincare.
