A few months ago, a client in her early 50s messaged me asking which collagen powder would “reverse” her aging skin. She’d seen influencers half her age promoting various brands, each promising dramatic results. I had to be honest with her: none of them will reverse aging. But that doesn’t mean collagen and silica supplements are useless, either.
After 12 years of answering questions about collagen and silica, I’ve seen what works, what’s marketing hype, and what people actually need to know before spending money on these increasingly popular supplements. This article covers the evidence, the practical considerations, and how to choose products if you decide they’re worth trying.
Here’s my reality check upfront: supplements are one small piece of skin health, not a magic bullet. The foundations matter far more than any powder or capsule ever will.
What Actually Happens to Skin Elasticity as We Age
Let’s start with what’s actually happening under your skin. Collagen is the most abundant protein in your body, providing structure and firmness to skin, bones, tendons, and ligaments. Starting around age 25, we lose about 1% of our collagen per year. By the time you hit 50, you’ve lost roughly 25% of what you had in your 20s.
But collagen isn’t the only player. Elastin gives skin its ability to bounce back after being stretched or compressed. It gets less attention than collagen, but it’s just as important for that “snap back” quality of youthful skin. Unlike collagen, elastin doesn’t regenerate well once it’s damaged.
Silica, a trace mineral, plays a supporting role by helping to form and maintain collagen and elastin fibres. It’s like the scaffolding that helps keep connective tissue strong and flexible.
Here’s what most supplement marketing doesn’t mention: other factors matter just as much, if not more:
- Chronic dehydration directly impacts skin plumpness and appearance
- Sun exposure breaks down collagen and elastin faster than aging alone
- Blood sugar instability damages collagen through glycation (more on this later)
- Chronic stress elevates cortisol, which accelerates collagen breakdown
- Poor sleep disrupts the repair processes your skin needs
In my practice, I always address these foundational factors before even discussing supplements. There’s no point adding collagen powder to your routine if you’re sleeping 5 hours a night and living on coffee and toast.
Key Point: Skin elasticity depends on multiple factors. Collagen and silica supplements may help, but they work best as part of a broader approach that includes adequate protein, hydration, sun protection, blood sugar balance, and stress management.
Collagen Supplements: Separating Evidence from Marketing
Let’s talk about what the research actually shows. The evidence for collagen supplementation is modest but reasonably consistent. Several studies have found that taking hydrolyzed collagen peptides (usually 2.5-10g daily) for 8-12 weeks can lead to:
- Slight improvements in skin hydration
- Modest increases in skin elasticity measurements
- Some reduction in the appearance of fine lines
- Better skin density on instrumental testing
These aren’t dramatic transformations. We’re talking about measurable but subtle improvements that develop gradually over months, not weeks.
Types and Forms of Collagen
Not all collagen products are created equal. Here’s what you need to know:
Hydrolyzed collagen (collagen peptides) is broken down into smaller pieces that your body can absorb more easily. This is what most quality supplements use and what most research studies have tested.
Gelatin is partially broken down collagen. It’s less bioavailable than hydrolyzed collagen, but it’s cheaper and can still provide amino acids your body uses for collagen production.
Bone broth contains some collagen, but you’d need to drink large amounts daily to match the doses used in studies (which isn’t practical for most people).
Types of collagen matter for different tissues:
- Type I: skin, bones, tendons (this is what you want for skin support)
- Type II: cartilage and joints
- Type III: skin, blood vessels, organs (often found alongside Type I)
Most quality skin-focused supplements contain primarily Type I collagen, sometimes with Type III.
What I’ve Observed in Practice
Some clients notice improvements within 6-8 weeks: their skin feels more hydrated, fine lines look softer, and their skin has a bit more “bounce.” Others take 12 weeks or longer. And honestly, some don’t notice much difference at all.
Who tends to respond best? In my experience:
- People who were low in protein to begin with
- Those with very dry skin
- Clients who are consistent with daily use
- People who are also addressing the other factors (sleep, stress, nutrition)
Who doesn’t seem to benefit much? People with excellent diets already rich in protein and collagen-supporting nutrients, or those expecting dramatic wrinkle reversal.
For more comprehensive support with skin concerns, you can explore our skin health services.
Silica: The Underrated Mineral for Connective Tissue
While everyone’s talking about collagen, silica quietly does important work in the background. This trace mineral is involved in the formation and maintenance of collagen and elastin. It helps strengthen connective tissue and may support skin firmness from a different angle than collagen supplementation alone.
Food Sources vs Supplements
Silica is found naturally in:
- Whole grains (especially oats and brown rice)
- Green beans
- Bananas
- Root vegetables
- Some mineral waters
However, modern diets tend to be lower in silica-rich foods than traditional diets were. Food processing and soil depletion have reduced silica content in many foods.
Forms of Silica Supplements
Bamboo extract is a concentrated source of natural silica, typically standardized to 70% silica content. This is one of the most common and well-absorbed forms.
Horsetail (Equisetum arvense) is a traditional herb that’s naturally high in silica. It’s been used for centuries for connective tissue support.
Colloidal silica is a liquid form that some people find easier to take, though it’s less concentrated than bamboo or horsetail extracts.
In practice, I typically use bamboo extract or horsetail, often in combination with collagen for clients focusing on skin and connective tissue support. Typical dosing ranges from 5-40mg of elemental silica daily, though this varies by form and individual needs.
Who Might Benefit Most
I consider silica supplementation for clients who:
- Have thin or fragile-feeling skin
- Are dealing with brittle nails or thinning hair alongside skin concerns
- Have diets low in whole grains and silica-rich foods
- Are looking for comprehensive connective tissue support
Key Point: Silica works synergistically with collagen by supporting the formation and maintenance of connective tissue. While less researched than collagen, it’s a worthwhile consideration for comprehensive skin elasticity support.
What I Actually Recommend to Clients
Here’s my framework: start with foundations first. Before I suggest any collagen or silica supplement, I look at:
- Protein intake: Are you getting 1.2-1.6g per kg of body weight daily? Collagen is made from amino acids, and if you’re not eating enough protein, a supplement is putting the cart before the horse.
- Collagen cofactors from food: Vitamin C, zinc, and copper are all essential for collagen synthesis. I’d rather you eat citrus, berries, peppers, shellfish, nuts, and seeds than pop a collagen pill while living on pasta and crackers.
- Basic lifestyle factors: sleep, stress management, sun protection, hydration.
Once those boxes are reasonably ticked, then we can talk supplements.
When I Suggest Collagen Supplementation
I typically recommend trying collagen when:
- Diet is solid but you want additional support
- You have specific concerns about skin elasticity or hydration
- You’re noticing changes in skin texture as you age
- You’re willing to commit to 3 months of consistent use to properly assess
When I Don’t
I usually steer people away from collagen if:
- They’re expecting dramatic wrinkle reversal
- Their diet is poor and they want a quick fix
- They’re not willing to address sun damage, smoking, or other major factors
- Budget is tight (I’d rather you spend money on high-quality food)
Qualities to Look For in Collagen Products
Hydrolyzed/peptide form: This ensures better absorption. The product should clearly state “hydrolyzed collagen” or “collagen peptides.”
Clean sourcing: Grass-fed bovine or wild-caught marine sources tend to be higher quality. Marine collagen is primarily Type I, which is excellent for skin. Bovine collagen contains both Type I and III.
Third-party testing: Look for products that are tested for heavy metals and contaminants, especially with marine collagen.
Realistic marketing: If it promises to “reverse aging” or “erase wrinkles,” walk away. Good brands are honest about modest, gradual improvements.
Minimal additives: Pure collagen powder should have few or no additional ingredients. Watch out for products loaded with sugar, artificial sweeteners, or fillers.
Silica Supplement Considerations
For silica, I typically use:
- Bamboo extract standardized to 70% silica: 300-500mg daily (providing roughly 210-350mg of silica)
- Horsetail extract: 300-500mg daily
- Often combined in formulas that include both collagen and silica
Some of my clients use standalone silica, others prefer combination products that include both collagen and silica along with vitamin C and other cofactors.
The Collagen Cofactors That Matter
Taking collagen in isolation isn’t optimal. Your body needs other nutrients to actually use it:
- Vitamin C: Essential for collagen synthesis. Aim for 100-200mg daily from supplements, plus plenty from food.
- Zinc: Involved in collagen production and skin repair. 15-30mg daily if supplementing.
- Copper: Works with vitamin C in collagen formation. Usually 1-2mg daily (often included in quality multivitamins).
- Amino acids: Glycine, proline, and hydroxyproline are the building blocks of collagen. Eating enough protein ensures you have these available.
This is why I often recommend a comprehensive approach rather than just isolated collagen powder. Our nutritional support services can help you build a plan that addresses all these factors together.
The Practical Stuff: How to Take Them
Best time of day? Honestly, it doesn’t matter much. Take collagen whenever you’ll remember to be consistent. Some people prefer morning smoothies, others mix it into evening tea. I have clients who stir it into their coffee (it dissolves well in hot liquids).
How it tastes: Quality collagen peptides are virtually tasteless. If yours tastes bad or won’t dissolve, you probably have a lower-quality product. Marine collagen can have a slight fishy smell, but it shouldn’t be overwhelming.
Mixing suggestions:
- Coffee or tea (dissolves well, no taste impact)
- Smoothies (can’t taste it at all)
- Yogurt or oatmeal
- Even water, though some people find this boring
How long to trial: Give it a solid 12 weeks before deciding if it’s working. Most studies show benefits emerging around 8-12 weeks of consistent use.
Combining collagen and silica: There’s no problem combining them, and they may work synergistically. Many clients take collagen daily and silica alongside it, or use combination products.
Interactions and Precautions
Collagen and silica are generally very safe. A few things to note:
- Some people report mild digestive upset initially (usually resolves within a week)
- If you have kidney issues, check with your doctor before supplementing with protein powders
- Silica from horsetail shouldn’t be taken long-term if you have thiamine deficiency concerns
- Collagen is derived from animal sources, so it’s not suitable for vegetarians or vegans
Key Point: Consistency matters more than timing. Choose a method that fits your routine and stick with it for at least 12 weeks before assessing results. Combine with adequate vitamin C, zinc, and protein for best results.
What Actually Matters More Than Supplements
I’m going to be blunt: if I had to choose between a client taking collagen supplements or addressing these factors, I’d choose these factors every time.
Protein Intake: The Foundation Most People Skip
Your body makes collagen from amino acids found in protein. If you’re not eating enough protein, taking collagen powder is like trying to build a house while someone’s stealing your bricks.
Aim for 1.2-1.6g per kg of body weight daily. For a 70kg person, that’s 84-112g of protein spread throughout the day. Include quality sources: eggs, fish, poultry, meat, legumes, dairy, nuts, seeds.
This is often the single biggest factor I address with clients concerned about skin elasticity.
Vitamin C and Collagen Synthesis
Vitamin C is absolutely essential for collagen formation. Without adequate vitamin C, your body literally cannot make collagen properly. This is why scurvy (severe vitamin C deficiency) causes skin and gum problems.
Eat plenty of:
- Citrus fruits
- Berries
- Kiwi fruit
- Capsicum (bell peppers)
- Broccoli
- Brussels sprouts
If supplementing, 100-200mg daily is plenty. Mega-doses aren’t necessary.
Blood Sugar Balance and Glycation
Here’s something the beauty industry rarely mentions: high blood sugar damages collagen through a process called glycation. When blood sugar is chronically elevated, glucose molecules attach to proteins (including collagen), making them stiff, brittle, and dysfunctional. This shows up as premature aging, loss of skin elasticity, and wrinkles.
You can take all the collagen supplements in the world, but if your blood sugar is constantly spiking, you’re fighting a losing battle.
Practical steps:
- Balance meals with protein, fat, and fiber alongside carbohydrates
- Avoid long periods of grazing on refined carbs
- Include movement after meals when possible
- Prioritize sleep (poor sleep wrecks blood sugar regulation)
Sun Protection
I know you’ve heard this before, but I’m saying it again because it’s that important. Sun damage (photoaging) breaks down collagen and elastin faster than chronological aging alone. It accounts for up to 80% of visible facial aging.
Daily broad-spectrum SPF 30+ on exposed skin. Every day, not just at the beach. This single habit will do more for your skin elasticity than any supplement ever will.
Stress and Cortisol
Chronic stress elevates cortisol, which directly accelerates collagen breakdown. I see this constantly in practice: clients with high-stress jobs and poor boundaries often have skin that looks older than their chronological age, regardless of how much money they spend on products and supplements.
Address stress through:
- Setting boundaries around work and availability
- Regular movement or exercise
- Breathing practices or meditation
- Adequate downtime and rest
- Connecting with people you care about
Our lifestyle coaching services can help you build sustainable stress management practices that actually fit into your real life.
Sleep and Skin Repair
Your body does most of its repair work while you sleep. Growth hormone, which is essential for collagen synthesis and skin repair, is primarily released during deep sleep.
Chronically sleeping less than 7 hours? That’s probably impacting your skin more than you realize. Aim for 7-9 hours of quality sleep nightly.
Hydration
This is basic, but it’s critical. Dehydrated skin looks and feels worse. It won’t “plump” fine lines or replace lost collagen, but adequate hydration makes skin look healthier and more resilient.
Aim for around 2-3 liters of water daily, adjusted for your activity level, climate, and individual needs. Herbal teas count. Coffee in moderation is fine.
Signs It Might Be Working (And When to Reassess)
Let’s set realistic expectations about what “working” actually looks like with collagen and silica supplements.
Realistic improvements you might notice:
- Skin feels more hydrated and less dry or papery
- Fine lines appear softer, particularly around eyes or mouth
- Skin has slightly more “bounce” when you press on it
- Texture is smoother to the touch
- Nails are stronger and less brittle (this is often the first thing clients notice)
- Hair feels thicker or less prone to breakage
These changes are subtle and develop over 8-12 weeks of consistent use.
What’s not realistic:
- Dramatic reversal of deep wrinkles or sagging
- Significant reduction in visible sun damage
- Elimination of cellulite or stretch marks
- Major changes in facial contours
If you’re not noticing any difference after 3 months of consistent use, it’s fair to question whether it’s worth continuing. Some people respond well, others don’t. That’s the reality with most supplements.
How to Track Progress
Take photos in the same lighting, same angle, at baseline and at 6 and 12 weeks. Don’t obsess over them, just use them as an objective reference. Our perception of our own faces changes daily based on mood, sleep, hydration, and a dozen other factors. Photos help.
Pay attention to how your skin feels, not just how it looks. Improved hydration and texture are valid benefits even if they’re not dramatically visible.
Key Point: Realistic improvements are subtle and gradual. If you’re expecting dramatic wrinkle reversal, you’ll be disappointed. If you’re looking for modest improvements in hydration, texture, and overall skin quality over several months, that’s achievable for some people.
Red Flags in Collagen and Silica Products
Not all supplements are created equal. Here’s what makes me suspicious:
Proprietary blends with undisclosed amounts. If the label says “proprietary blend” without telling you how much of each ingredient is included, you can’t know if you’re getting effective doses. Pass.
Outrageous marketing claims. “Reverse aging!” “Erase wrinkles!” “Look 10 years younger!” These are red flags. Quality brands make measured, evidence-based claims.
Collagen products loaded with fillers, sugars, or unnecessary additives. Some products are more sugar and flavoring than actual collagen. Check the ingredient list. Collagen should be the first and primary ingredient.
Extremely cheap products. Quality collagen peptides aren’t expensive, but they’re not dirt cheap either. If it seems too good to be true price-wise, the quality is probably questionable. You might be getting poorly absorbed gelatin or insufficient doses.
Products marketed as “anti-aging miracles.” Aging is normal and inevitable. Any product claiming to stop or reverse it is lying to you.
Common Questions I Get Asked
Can vegetarians or vegans take collagen?
No, collagen is derived from animal sources (bovine, marine, or eggshell membrane). However, you can support your body’s own collagen production by eating adequate protein with all essential amino acids, plus vitamin C, zinc, and copper. Some companies make “vegan collagen boosters” with amino acids and cofactors, though they’re not actually collagen.
Will it help with cellulite, stretch marks, or scars?
Probably not significantly. Cellulite is primarily about fat distribution and connective tissue structure under the skin. Stretch marks and scars are more complex than simple collagen loss. Collagen supplementation might have very modest benefits for skin quality overall, but don’t expect visible improvements in these specific concerns.
Is marine collagen better than bovine?
Marine collagen is primarily Type I, which is great for skin. It’s also absorbed slightly more easily due to smaller particle size. Bovine collagen contains both Type I and Type III. Both are effective. Marine tends to be more expensive. Choose based on your dietary preferences, budget, and whether you prefer the slightly smaller peptide size of marine collagen.
Can I get enough from bone broth alone?
Unlikely. While bone broth does contain collagen, you’d need to drink large amounts daily to match the doses used in research studies (usually 5-10g of collagen peptides). Bone broth is wonderful for other reasons, but it’s not a practical replacement for supplemental collagen if your goal is skin elasticity support.
Do I need to take it forever?
No. Some clients take collagen for several months, notice improvements, and then cycle off. Others use it long-term. If you stop taking it, your skin won’t suddenly worsen beyond where it would naturally be. Think of it as ongoing support rather than a treatment you must maintain forever.
For more detailed answers about working with supplements and natural health approaches, check out our FAQ page.
My Honest Take After 12 Years
Collagen and silica supplements can be helpful additions for some people, but they’re not essential for everyone. In my practice, the clients who get the most benefit are usually doing the other things right too: eating well, managing stress, sleeping enough, protecting their skin from sun damage.
It’s a “nice to have” not a “must have” for skin health.
I typically recommend trying collagen and silica when:
- Diet and lifestyle foundations are reasonably solid
- You have specific concerns about skin texture or elasticity
- You’re willing to commit to 3 months of consistent use
- You understand that improvements will be modest, not dramatic
- You have the budget for quality products
I don’t recommend it as a first-line approach if:
- Diet is poor (fix that first)
- You’re not addressing sun damage and other major factors
- Budget is tight (spend that money on nutrient-dense food instead)
- You’re expecting miracle results
If I had to choose where you spend your money, I’d prioritize high-quality protein sources, lots of colorful vegetables and fruits for vitamin C and antioxidants, and a good broad-spectrum sunscreen over any supplement, including collagen.
That said, for clients who are already doing those things and want additional support, collagen and silica supplements have a reasonable evidence base and a good safety profile. They’re worth considering as part of a comprehensive approach.
Working with a Naturopath for Skin Health
Sometimes skin issues need more than supplements. When clients come to me with concerns about skin elasticity, texture, or premature aging, I’m looking at the whole picture:
- Gut health: Inflammation and poor nutrient absorption impact skin quality
- Hormones: Estrogen decline affects collagen production and skin thickness
- Chronic inflammation: Shows up in skin aging and poor wound healing
- Nutrient deficiencies: Zinc, vitamin A, vitamin C, iron, protein, essential fatty acids
- Stress and cortisol: Direct impact on collagen breakdown
- Blood sugar dysregulation: Glycation damages existing collagen
In consultations, I assess your individual situation through detailed history, symptom analysis, and often functional testing. This might include:
- Comprehensive nutrient panels
- Inflammatory markers
- Hormone assessment if relevant
- Sometimes gut health testing if there are digestive concerns
From there, we build a realistic plan that fits your life. This usually includes dietary changes, targeted supplementation (which might include collagen and silica but often involves addressing other gaps first), lifestyle modifications, and sometimes herbal or nutritional medicine for underlying issues.
Learn more about how I work with clients or explore the functional testing options that might be relevant for your situation.
If you’re dealing with persistent skin concerns that haven’t responded to topical treatments alone, book a consultation and we can dig deeper into what’s actually going on beneath the surface.
The Bottom Line
Collagen and silica supplements have modest but reasonably consistent evidence supporting their use for skin elasticity and hydration. They’re not miracle workers, but they can be useful additions as part of a bigger picture approach.
Start with the foundations: adequate protein, plenty of vitamin C-rich foods, balanced blood sugar, good sleep, stress management, sun protection, and hydration. These will always matter more than any supplement.
If you decide to try collagen and silica, choose quality products, commit to at least 12 weeks of consistent use, and set realistic expectations. You’re looking for gradual, subtle improvements in skin hydration and texture, not dramatic wrinkle reversal.
Quality matters, but so does not overspending on marketing hype. You don’t need the most expensive celebrity-endorsed brand. You need hydrolyzed collagen peptides from a clean source, taken consistently, alongside a diet and lifestyle that supports collagen synthesis.
The best approach to skin elasticity is always multifaceted, patient, and realistic. Collagen and silica can be part of that approach, but they’re supporting actors, not the stars of the show.
Sarah Mitchell, BHSc (Naturopathy)
Member of ATMS & ANTA
