Beach pack: why combine marine collagen and multivitamins this summer
Jul 03, 2026
You've carefully planned your luggage. Sunscreen, hat, comfortable sandals. Maybe even a book you'll actually read this time. And yet there's something most of us forget to pack: the nutritional routine that supports the skin from within, precisely when it needs it most.
Summer is a season of pleasure, no doubt about it. But it's also the season when the body is dealing with extra sun exposure, heat that speeds up fluid loss, often lighter meals and more intense physical activity, all at the same time. It's no coincidence that, after the holidays, many people notice duller skin, weaker hair or energy that's slow to return.
The good news? Two liquid formulas, cleverly combined, can make a real difference throughout the summer.
What summer really does to your skin
We love the sun for what it gives us: warmth, light, that feeling of being alive to your fingertips. But beneath the skin's surface, ultraviolet rays trigger a mechanism that researchers have documented well.
UV rays, especially UVA, which penetrate deep, generate what are called free radicals. These unstable molecules attack the structures of the dermis, notably the skin's supporting framework. And that framework is collagen. It's made continuously by your skin's support cells, but its production slows down naturally with age, and the sun speeds this up even further. We explain this in The sun destroys your collagen, and here's how to fix it.
The practical result: after a few weeks of exposure, skin loses its bounce, features become slightly more hollow, and the complexion can look less luminous than expected despite the tan. It isn't a question of topical treatments. It's a question of the resources available inside the skin to make up for what summer takes from it.
Heat adds another dimension: increased sweating leads to losses of minerals and electrolytes that summer meals, often lighter and less varied, don't always make up for. That's where the second part of the equation comes in: vitamins and minerals.
Why liquid marine collagen is particularly suited to summer
The question isn't simply “should I take collagen?”, but “which form, which dose, and when?”. And that's where the liquid format really makes sense, especially in summer.
Vitamoon liquid marine collagen provides 10,000 mg of type 1 and 3 marine collagen peptides per 25 ml daily serving. These peptides are very small protein fragments, which allows the body to take them up quickly. Unlike capsules or powders, which need extra dissolving steps, the liquid format is ready to use, and especially practical when your morning routine goes on holiday with you.
The formula doesn't stop at collagen. It also includes hyaluronic acid, an active known for its role in maintaining skin hydration, biotin, which contributes to the maintenance of normal skin, and vitamin C, which contributes to normal collagen formation for the normal function of skin. Silica completes the formula, contributing to the strength of connective structure.
In practice: one 25 ml serving in the morning, for 20 days. A summer course, concrete and measurable.
The little-known role of multivitamins in summer
We often think of multivitamins as a winter supplement, useful when the sun is scarce and colds are going round. That's too narrow a view.
In summer, nutritional needs actually increase. Sweat causes significant losses of potassium, magnesium and zinc. Skin and mucous membranes, under more strain from UV exposure and pool chlorine, need support from vitamins A and E and selenium to cope with oxidative stress. And energy, the kind that lets you enjoy the whole day without that afternoon slump, depends on a balance of B vitamins that wears down faster when meals are irregular.
Vitamoon Liquid Multivitamins combine 28 actives in a natural fruit juice base. Among them: vitamins B1, B2, B6 and B12, which contribute to normal energy-yielding metabolism and to the reduction of tiredness and fatigue. Vitamin E and selenium, which contribute to the protection of cells from oxidative stress. Vitamin A, which contributes to the maintenance of normal skin. And vitamin D, useful even in summer, especially for those who stay in the shade or carefully protect their skin from the sun.
Here again, the liquid format has an everyday advantage: 15 to 30 ml diluted in a glass of water or your morning juice. No capsule to swallow, no tablet to chew.
Combining collagen + multivitamins: a logic of synergy
Taken separately, these two products already make sense. Combined, they form something more complete.
Marine collagen provides the structural raw material: the peptides that signal your skin cells to produce their own collagen, hyaluronic acid for hydration, and biotin and vitamin C to support the whole. The multivitamins make sure the soil is fertile: balanced cell metabolism, antioxidant support against free radicals generated by the sun, and sustained energy so the body can actually make use of what it's given.
It's the difference between planting seeds in dry soil and planting them in well-watered ground. One nourishes, the other creates the conditions for that nourishment to work.
Researchers have also observed that several micronutrients play a direct role in collagen synthesis and the skin's response to oxidative stress: vitamin C, zinc, vitamin E, selenium. These same actives are found in both Vitamoon formulas, complementing each other without overlapping.
And there's one last, often underestimated benefit: practicality. Two liquid steps in the morning, easy to fit into any holiday routine, with no bulky boxes of capsules. A ritual that travels with you.
How to fit both formulas into your summer routine
It's simple to organise.
In the morning: 25 ml of Vitamoon Liquid Marine Collagen straight from the bottle or in a small glass. The texture is fluid, with a slightly sweet strawberry taste that's refreshing from the first sip.
At the same time, or a few minutes later: 15 to 30 ml of Liquid Multivitamins diluted in a large glass of water or fruit juice. The 500 ml family size lets you share the course or make it last through the summer.
The Marine Collagen course lasts 20 days, the Multivitamins 33 days. You can start both at the same time for maximum synergy from the first weeks. And if you go on holiday in between, the bottles travel easily, outside checked luggage.
A practical tip: note the start date of your course. Skin renews slowly: in studies, the effects of collagen on the skin are measured after 8 to 12 weeks of daily intake. Consistency matters more than anything.
Frequently asked questions
Can you take Marine Collagen and the Multivitamins on the same morning?
Yes, the two formulas are perfectly compatible. They contain no actives that cancel each other out. You can take them one after the other within the same few minutes, or a few minutes apart if you prefer.
Are these products suitable for daily use on holiday, outside the fridge?
Liquid Marine Collagen and Liquid Multivitamins keep at room temperature before opening. Once opened, it's recommended to keep them in the fridge and use them within 2 months. When travelling, a cool box or hotel minibar is enough. The 500 ml bottles can go in cabin luggage within the volume rules in force.
How long before you see effects on the skin?
Skin renews slowly: in collagen studies, the effects on hydration and elasticity are measured after 8 to 12 weeks of daily intake. Consistency matters more than anything.
Are these formulas suitable for all skin types, including mature skin?
Yes. Liquid Marine Collagen is particularly relevant for mature skin, which naturally produces less collagen. The greater the need, the more supplementation makes sense. The Multivitamins, for their part, are formulated for any adult wanting to cover their daily micronutrient needs. To find out more, read Collagen for skin: what the science says.
Is Vitamoon Marine Collagen suitable for people allergic to seafood?
No. Vitamoon Liquid Marine Collagen contains collagen extracted from fish (mandatory statement: contains fish). It is not recommended for people allergic to seafood. In that case, Collagen Choco Latte or Matcha Latte, made with PEPTAN® collagen peptides, may be a suitable alternative.